May 5, 2021

Climate Change Has Shifted the Axis of the Earth

Climate Change Has Shifted the Axis of the Earth

SpaceTime with Stuart Gary Series 24 Episode 50
Climate Change has shifted the axis of the Earth
A new study claims glacial melting due to global warming was likely the cause of a shift in the movement of the Earth’s poles that occurred in the 1990s.

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SpaceTime with Stuart Gary Series 24 Episode 50

*Climate Change has shifted the axis of the Earth

A new study claims glacial melting due to global warming was likely the cause of a shift in the movement of the Earth’s poles that occurred in the 1990s.

*What may be the nearest black hole to Earth

Astronomers have discovered what may be the nearest black hole to Earth, orbiting in a binary system with a nearby red giant called V723 Monocerotis.

*New dragon crew safely arrive at the space station

NASA’s SpaceX Crew-2 has successfully docked with the International Space Station with the second commercial crew rotation mission.

*Top secret spy satellite launched

One of the world’s most powerful rockets – the Delta IV heavy has successfully launched a new American spy satellite into orbit.

*The Science Report

Increasing energetic ocean eddies may be affecting climate change.

More evidence that Tyrannosaurs roamed in packs.

Beijing’s social credit surveillance system now tracking people overseas.

New technology to reduce computer energy consumption.

Alex on Tech:Apple has finally launched its long-awaited iOS 14.5 update.


See for privacy and opt-out information.

The Astronomy, Space, Technology & Science News Podcast.


SpaceTime Series 24 Episode 50 AI Transcript

[00:00:00] This is space time series 24 episode 54 broadcast on the 5th of May, 2021. Coming up on space, time. Climate change shifts the axis of the earth. What may be the nearest black hole to the earth. And one of the world's most powerful rockets successfully launches in new spy, satellite, all that, and more coming up.

Um, space time. Welcome to space time with steward, Gary

And you study claims glacial melting due to global warming was the likely cause of a shift in the movement of Earth's polls. During the 1990s, the location of the planets North and South poles, art static, unchanging spots, the axis that the earth spins [00:01:00] around or more specifically, the surface that the invisible line emerges from is always moving through polar wander oppressed.

It's not well understood. The way water is distributed on a surface is one factor that drives this drift. Now a report in the journal, geophysical research letters, claims melting glaciers, redistributed enough water that caused the direction of polar wander to turn and accelerate eastwards. During the mid 1990s, think of the earth, rotating around its spin axes, like a spinning toy top.

Now if the weight distribution of the top is altered and moved around, the spinning top would start to lean and wobble as its rotational axis changes. And the same thing happens on a much larger scale to the earth. As weight gets shifted from one area to another, to, to melting ice, the studies authors were able to determine the causes of polar drifts using data from the joint NASA and German space agency, twin grace, gravity, recovery, and climate experiment, spacecraft.

The first pair of gray satellites were [00:02:00] launched in 2002 and a follow-up mission with two more satellites flew in 2018. The mission has been gathering information on how mass is distributed around the planet by measuring and even changes in gravity at different points or mass means small gravity.

Previous grace mission data revealed that more recent movements in the North pole away from Canada and towards Russia was most likely caused by changes in the circulation pattern of Earth's molten out core. But grace found other shifts, which were affected by terrestrial water storage, change the process by which all the water on land, including frozen water in glaciers and groundwater stored under the continents is being lost through a combination of melting and groundwater pumping.

The authors also wanted to determine that could explain changes that occurred during the mid 1990s C in 1995. The direction of the polar drift shifted from Southwest to eastwards. The average speed of drift from 1995 to 2020 also increased about 17 [00:03:00] times from the average speed recorded between 1981 and 1995.

Now the researchers have found a way to wind modern polar tracking analysis backwards in time to learn why this drift occurred. The new research calculates the turtle land water loss in the 1990s before the grace mission began. The study's lead author, Zia Lu and colleagues from the Chinese Academy of sciences found that the loss of water mass frozen in the polar regions of the planet was the primary driver of Eastwood's polar drift during the 1990s.

But the authors also found that the faster ice melting couldn't entirely explain the shift, a slight remaining gap in the numbers is attributed to unsustainable groundwater pumping for agriculture and non-polar areas. The research showed large changes in water mass in areas like California, Northern Texas, and the region around Beijing, as well as across Northern India, all areas that have been pumping large amounts of ground water for agricultural use the changing earth spin axis.

Isn't large enough to affect [00:04:00] daily life. Although it could change the length of the day by a few milliseconds. This is space time, still the calm discovery of what may be the nearest black hole to earth and NASA space X crew to successfully docks with the international space station, all that and much more store to come on.

Space time.

Astronomers have discovered what may be the nearest black holder worth the findings reported in the journal. The monthly notices, the Royal astronomical society suggest that a newly discovered stellar mass black hole candidate, a piece to be in a binary system with a well-known nearby red giant, or V seven 23 minus serratus, which is located just 1500 light years away.

And the constellation of Monticello bras.  [00:05:00] has the same mass as the sun, but as a red giant, it's now blurted out to some 25 times the suns diameter, a higher state universities, Thrinder Jerre singing. Todd Thompson and colleagues were looking through archival data on V seven 23. When they noticed something they couldn't see, which appeared to be orbiting the red giant and was causing light from the star to change in intensity and appearance at regular intervals.

It seems something with around three times, the mass of our sun was gravitationally perturbing the red giant causing a table of distortion that was changing its shape. And the most likely explanation for this would be a small stellar mass black hole, a black hole candidate, which the authors are now calling the unicorn, but had just three solar masses.

This would be one of the smallest black holes ever detected. This report from the Ohio state university

in 2020 researchers at the Ohio state university, [00:06:00] look to the skies in search of a unicorn, but unlike our favorite mythical creature, this unicorn is an example of a once undetectable black hole, possibly the closest to our solar system, black holes have been kind of a big deal. Ever since the first photo of a supermassive black hole was taken in 2019, black holes are exceptionally hard to find because they don't emit any light to pinpoint where they are.

You look at how nearby stars interact with them and measure the x-ray Tivity. The way that's yielded. The most black holes was two. Go look for x-ray emission. The black hole is stripping material off of the star. And as the black hole strips material off of the star, it emits a bunch of x-rays and those x-rays are very prominent science.

I believe there are many more black holes in the universe we haven't identified yet. Black holes that aren't interacting with a star and have very little x-ray activity [00:07:00] from theoretical models. We know that there are thousands of these non-interactive black holes in the galaxy and scientists from all over the world are very interested in finding these non-interactive black holes, Ohio state university, professor Todd Thompson and presidential fellow Tara undo Jaya singer looked at the problem and set out to prove that black holes can be discovered in a different way.

They set their sights on an unusual object in the constellation, mano Ceros, the unicorn constellation. They're an unknown mass is causing a disruption in the shape of the light coming from a surrounding older star called a red giant black holes, gravity distorts the shape of the red giant and the distortion creates changes in how we see the star over the face of the orbit.

Huff the backhoe around the giant, and you can measure how fast it's coming towards you and how fast it's going away. And you can also measure how the star is distorted by the [00:08:00] gravity of the nearby dark object. And this particular star is in this is in this teardrop shape by measuring the Doppler shift and ellipsoidal variability.

The researchers have identified this as a black hole. What's unique is this black hole is only 1500 light years away. Making it the closest one to earth. It's also among the smallest black holes to be discovered at only three times the size of our sun, because the system is so unique and so weird that, you know, it definitely warranted the nickname of the unicorn.

Researchers hope this method of measuring the shape and orbit of nearby stars will be used to identify more non interacting black holes and provide data about their formation and our universe. When you look at new ways and you find a new thing, then you say, well, you know, we need to keep looking in this way because we might find a lot of these new things

that report [00:09:00] from Iowa state university. We heard from Todd Thompson and Taran dude, jazz singy. Meanwhile a May, 2020 study hypothesized that the double or triple star system in the Southern constellation of telescope, him known as HR 68, 19 HD 16, 71, 28 or QV telescope, which is located about 1,120 light years away.

Good. In fact, be the nearest black hole worth. If confirmed, it would also be the first system with a black hole, visible to the unaided eye. A second study published two months later, they concluded that rather than the triple star system, it was more likely to be a binary black hole and star orbiting at one distance and another star at a different distance.

However, three further 2020 pavers have since argued that HR 68 19 is in fact, simply a binary system with two mainstream stars and no black hole at all. This is space time still the com and you dragon crew arrived safely aboard the international space station. And one of the world's most [00:10:00] powerful rockets has launched a new American spy satellite.

Oh that a mall store to come on. Space, time.

NASA's space ex crude two has accessory dock with the international space station with a second commercial crew rotation mission. The mission blasted into orbit, a crew dragon to spacecraft named endeavor mounted on a Falcon nine rocket from space launch complex 39 eight at the Kennedy space center at the Cape Canaveral air force station, Florida ten nine eight seven six five.

Four three, two, one

[00:11:00] once again, for astronauts, from three countries on her to now making their way to the one and only international space station vehicle is pitching downrange nine Berlin engines on the first stage providing 1.7 million pounds of thrust hearing good calls. First stage performance. So far eight plus 30 seconds into the second rotational crew mission, onboards dragon and Falcon nine Falcon nine will be throttling down at the nine Merlin engines shortly here in preparation for maximum dynamic pressure.

And there's that call out for the throttle down maximum dynamic pressure. Max Q is the largest structural load that the vehicle sees throughout a scent. So throttling down does help us.

Helps us pass through this period. Cause she'll be coming here shortly

that we have just passed through max queue, stay at [00:12:00] 12 throttle up Bravo. Copy one. Bravo. All right. When Bravo is the second abort mode on the first stage, first stage continues to fire for two minutes, 35 seconds, one and a half minutes into today's flight. Falcon nine now traveling at 1500 miles an hour, and the kinda chill started.

All right. The engine show for the second stage single Merlin engine has started while 30 more seconds of the first stage firing to bring our four astronauts into orbit. Now from here coming up in about 20 some seconds, we're going to have three major milestones. We'll have shutdown of the nine Merlin engines.

We're beginning to throttle them down. We will then get stage separation. And then we will get ignition of the second stage engine to propel dragon and the FARC nine second stage into orbit. Copy two alpha

And we have ignition of the [00:13:00] second stage, the expansion nozzle on the second stage Merlin vacuum glowing that bright red good performance on the second stage. So far the exhaust of the second stage engine streaming past the first stage. Is the grid fins are coming out. Currently. The first stage is continuing to coast up to Apogee it's unpowered it'll reach a peak height and then begin to descend back down toward the Earth's atmosphere where it will light three engines to slow down in preparation for what will be a landing burn on the drone ship in the Atlantic ocean.

The grid fans are deployed right now. The first day dragon trajectory nominal we're pulsing enough thrusters, Buddha. We hear a call out from the crew nominal trajectory. So we're beginning to move the first stage in a position so it can do the entry burn, 15 seconds into today's flight. Second state propelling, our four astronauts up the Eastern seaboard will continue to fire.

It's a six minute burn to deliver the astronauts into orbit. We'll wait for a cue for good orbital insertion. After that, meanwhile, [00:14:00] we will be hearing, uh, check-ins on the vehicles, trajectory and performance, as well as check-ins with some of the ground stations as it passes over, uh, throughout the. Six minutes of the second stage firing dragon space, six trajectory nominal acquisition of signal.

New Hampshire tracking station has acquired the second stage telemetry signal. Meanwhile, the first stage has reached Apogee and it's now beginning to descend from a height it's currently about 167 kilometers up in a few minutes, we will get the entry burn of the first stage dragon space, six trajectory nominal.

Right on cue those check-ins on the second stage performance. Once a minute. Everything's looking good on that. Second stage is nominal stage two continues to climb the vehicle. Now exceeding 8,000 miles an hour at an altitude of about 124 miles. And just about one minute from now, we will begin the entry burn of the first stage that will consist of lighting the center engine.

And then shortly [00:15:00] afterwards, two more engines for a 300 burn to slow down the first stage. In preparation for entering the Earth's atmosphere, another check-in and the crew confirming they're hearing the same thing. The vehicle exceeding are about to exceed about 10,000 miles per hour. First stage down at 90 kilometers, getting ready to relight three engines for the entry burn.

Stage two FTS has saved. We've got the center engine ignition and there come the two side engines. Now this entry burn will last about 29 seconds. It's going to significantly slow down the vehicle and preparation for hitting the denser part of the Earth's atmosphere entry burn complete or down below 35 kilometers.

Continuing to look good on the first stage I didn't until the Atlantic ocean for a landing on the drone ship. While second stage is less than a minute away from cutoff stage two terminal guidance. Copy Shannon Shannon called out at the back end of the stage two. A few seconds until cutoff in the shutdown, dragon space, X launch escape system, disarmed [00:16:00] dragon space, six nominal orbit, insertion

Falcon nine second stage has done its job delivering into orbit. You hear the applause here on Hawthorne in the drone ship. Of course, I still love you. It looks like first aid and the township. So the first stage is on the drone ship successfully landed. And more importantly, second stage is in a nominal orbit with a dragon spacecraft.

Getting ready for some important events coming up Gilly. That's right. About two more minutes, the dragon and the second stage of the Falcon nine will be in a coast phase. It'll take that long until the spacecraft separates from the Falcon nine. Of course, both. Uh, now in a nominal orbit, dragon, traveling at.

Nearly 17,000 miles per hour at an altitude of 124 miles. Again, the person crew of endeavor is in orbit right now. 10 seconds to spacecraft separation the crew dragon spacecraft docked autonomously with a [00:17:00] forward port on the Albany outpost harmony module. It's four crew members joining the seven expedition 65 crew members now on station and bringing the ISS is total compliment to 11.

The mission is marked a number of first, first commercial American crew to fly to international partners. In this case, France and Japan. It's also the first commercial crew handover between astronauts on the space station as crew one and crew two astronauts will spend that five days together on station, a full crew, one returned to worth.

It was the first reuse of a crew dragon two spacecraft and Falcon nine rocket on a man mission Pru, dragon endeavor, having fun. The historic demo, two man mission to the space station back in 2019 and the same Falcon nine launch vehicle flew the astronauts on last year's crew. One mission in November.

And finally it was the first time to commercial cruise spacecraft with Dr. At the space station at the same time. The crew members were made on station for at least six months returning now, earlier than [00:18:00] October 31st during their time on the Albany, our purse that's part of the expedition 65 crew they'll continue work on more than 250 ongoing experiments.

And they'll undertake research in preparing for the lunar gateway space station and the Adams missions to the moon and important. The scientific Fergus for expedition 65 is continuing a series of studies of tissue chips in space. Tissue chips are small models of human organs containing multiple cell types at behave much the same way as what they would in the human body.

The crew will also continue working on augmenting the space station, solar power system by undertaking a series of space walks to install the first pair of six new ISS rollout. Solar arrays, the crew dragon spacecraft also delivered a hundred kilograms of new cargo and fresh scientific supplies and hardware.

Among the experiments delivered is a study looking at possible causes for suppressed immune system response in micro gravity. During this day aboard the orbiting. Our post expedition [00:19:00] 65 crew will also receive supplies from several visiting spacecraft, including a Northrop Grumman, Cygnus cargo ship, a space X cargo, dragon, and possibly if it's working by then Boeing's new CST 100 Starliner on an unmanned mission.

This is space-time still the calm. One of the world's most powerful rocket successfully launches a new American spy satellite into orbit, and later in the science report, more evidence that tyrannosaurs roamed in packs, all that and more store to come on. Space time.

One of the world's most powerful rockets. The daughter for heavy has successfully launched the new American spy satellite into orbit. It was one of the final flights for the United launch Alliance is massive Dota for every rocket, which [00:20:00] combines three rocket core stages mounted side by side. The mission from space launch complex six that the Vandenberg air force base in California carried the classified national reconnaissance office NRO 82 satellite into orbit rock report range status rock range is green.

I can stay jelly to secure at flight level minus go and ROL 82 minus 10, nine eight seven six, five. For

lift off of United launch Alliance Delta for a heavy rock 80 on the picture over maneuver parameters looked good on all three cores core boosters. Now throttling down to the parks and thrust level or she'll trust. Achieve the voice of Rob Kesselman, providing a launch vehicle ascent data. Now 50 seconds into flight vehicle is.

Three miles in altitude, five miles down or assistance traveling at 970 miles per hour. All vehicle [00:21:00] systems look good at this time now at T plus 80 seconds vehicles now passing through max to maximum dynamic pressure lock one vehicles now supersonic all three RS 68 looks healthy at this time. Vehicle systems continue to be healthy.

The second stage reaction control system pressurization valve has now opened now 125 seconds into flight. Delta is now 18 miles. An altitude nine miles downrange distance traveling at 1800 miles per hour. Delta has now gone to closed loop guidance. Vehicle. Body rates are nominal three minutes remain in the booster phase of flight.

So it's a full rocket and always just one half of what it did. It lift off burning propellant at a rate of almost 5,000 pounds per second. One minute until port and starboard booster, engine cutoff, vehicle systems look healthy at this time. The attitude control system autopilot has controlled all vehicle, body rates, 10 years, approximately 30 seconds remaining now until the port and starboard booster engines, cutoff strapline boosters are now throttling down to the partial trust level strap on booster, cutoff and separation of the strap on boosters.

Core booster is now throttling back up core rooster is operating as expected at the a hundred percent throttle level. The upper stage lock system has [00:22:00] now begun to boost face shield on sequence to begin. Thermal conditioning is the alternate engine. One minute remaining in the booster phase of flight upper stage fuel system has begun the boost phase chill down sequence booster performance continues to look good at this time.

Vehicle, body rates continue to be near zero as expected. Core booster is now throttling down. We have beco for stage managing cutoff. We have state separation. Next deployment has begun preset on the all 10. We have ignition on the oil. 10 that's one we have indication of successful would fare Denison was this top secret client distant payload remained classified launches from Vandenberg, usually play satellites into highly inclined or elliptical orbits, or even more inclined Manya orbits, which provide higher latitude 12 times.

National reconnaissance office communications and signals intelligence gathering satellites would typically only require an Atlas five rocket, which can lift just over 20 tons into low earth orbit rather than the more powerful Delta four heavy, which can lift almost 29 tons into low earth orbit.

Another clue comes from [00:23:00] hazard area warnings were spent. Rocket stages are likely to fall down and NOTAMs which a notice to airman warning, pallets and airlines. They show a southwesterly trajectory for this launch, which rules out ammonia orbit is that will require a flight towards the Southeast. It does, however, match a sun synchronous orbit.

They're often used by imaging and remote sensing satellites. And for a spy satellite, it would allow it to pass over the same point on earth surface at the same time, every day, that way the light and shadows on the ground would be the same. And any changes would be easier to spot. So what does all this tell us?

It tells us that NRL 82 was most likely a big imaging satellite, something requiring a Delta for heavy. And that suggests a new keyhole crystal spacecraft. They had the same design, which NASA adopted for the Hubble space telescope, except instead of pointing outwards to space, they point down towards the earth.

The timing of the launch is also interesting. It suggests that this particular space craft is replacing an [00:24:00] earlier version, probably at the end of its useful life. Following this mission. The United launch Alliance has only three Delta, four heavy rockets left in the fleet, and they're all assigned to further national reconnaissance office missions.

There'll be one more from Vandenberg and two from Cape Canaveral in Florida. The United launch Alliance are replacing their Dota for heavier and Atlas five launch vehicles with their new next generation Vulcan center lawn system, which is slated to undertake its maiden flight later this year. We'll keep you informed this.


And Tom had to take another brief look at some of the other stories making use in science this week with a science report and you study warns that increasingly energetic ocean Eddie's, maybe affecting climate change. Scientists have long known that oceans are rapidly warming and that sea level is rising.

But now researchers have [00:25:00] discovered evidence that ocean eddies is becoming more energetic, over large regions of the ocean as well. Oh, Sinead is a whirlpools with sizes between 10 and a hundred kilometers across somewhat like small cyclists in the atmosphere. They're responsible for the weather in the oceans, moving warm and cold water from one location to another.

And this way, eighties move and mix hate carbon, salt, and nutrients, and affect everything from regional processes. Right up to global ocean circulation. The discovery reported in the journal nature. Climate change was made by scientists from the Australian national university and the university of new South Wales and shows clear changes in the distribution and strength of these eddies, which had not previously sleepy detected the idea of being stalked by a Tyrannosaurus is frightening enough, but a new study is supported previous research suggesting that these giant theropod dinosaurs may well have hunted in packs.

It's an idea. That's been widely debated with many paleontologist [00:26:00] doubting that the giant predators had the brainpower organizing anything more complex and what's observed in modern day crocodile feeding, frenzies, the pack hunting Terrana. So hypothesis was based in the discovery of the skeletons of more than a dozen Tyrannosaurus individuals at a site in Alberta.

But because the Alberta incident appear to be an isolated case, paleontological skeptics claim simply represented a unique set of circumstances rather than normal tyrannosaur saw behavior. However, a second tyrannis or mass death site has since been discovered in Montana. And now a third containing at least four individuals has been uncovered at the rainbows and unicorns quarry site in Southern Utah.

Uh, reporting the journal peer Jay claims, the new Utah site adds to the growing body of evidence showing that tyrannosaurs were complex, large predators capable of social behaviors, common to many of their living relatives, the birds. Beijing's or Willy and social credit surveillance system, which records the behavior of people [00:27:00] across China is now expanding globally with a hay delay or hot pot restaurant in Vancouver.

Now monitoring every customer at every table with a network of over 60 surveillance cameras. The data of what's being said and done by each customer at every table is then sent back to China for evaluation. The company has over 935 restaurants around the world. China's social credit system is a national blacklist being developed by the communist government to track and monitor people and evaluate them for the trustworthiness to the communist party.

It includes a numerical credit score system to reward and punish people and a Skynet massive Ellen's facial recognition system to track people's movements. B says your scores are their news to reward or punish citizens. Praise the Chinese government on social media and big brother gives you a high score, potentially leading to benefits, such as shorter hospital, waiting times access to better schools for your kids and the opportunity to buy an ice car protest [00:28:00] against the communist party or knowingly associate with another individual has a low score and that'll cause you to lose points.

And that means big brother will restrict your access to public services, limit your options to public transport, and even restrict where you can live. Your research suggests there's the potential to substantially reduce computer energy consumption below limits, which were previously thought to be unbeatable.

The theoretical study reported in the journal. Nano letters shows that electronics based on topological insulators, and you type of material that acts as an insulator on the inside, but conducts electricity on the outside or up to four times more energy efficient than electronics based on conventional semiconductors.

Uh, using topological insulators, the study suggests that scientists may finally be able to defeat the age old enemy of electronics known as Boltzmann's tyranny, which puts a limit on the lowest possible option voltage for a device. The study, there is a step towards reducing the unsustainable energy load of [00:29:00] information and computing technology, which is currently consuming around 10% of all global electricity supplies.

Apple has finally launched its long awaited iOS 14.5 update, which contains no less than 50 K security upgrades. With the details on this and more in the world of technology we're joined by Alex Herrera, Roy from it wider. Apple has launched new operating systems for all of its devices, iPhones, iPads, the home pod, Apple TV, and the watch.

And with 50 security vulnerabilities patched in iOS 14.5. And actively targeted vulnerability in macro West. It's always important to update so you can close these vulnerabilities down. Otherwise if people send you something in a webpage or in an app that's affected, although apps, normally aren't so easily circumvented with security, then, um, you know, you won't be affected.

And it's importantly stays with our phones containing so much information about us that we protect ourselves as much as [00:30:00] possible. So the 14.5. For the iPhone is about a gigabyte in download for Mac iOS. It's about five gigabytes, but of course these guys with fast broadband connections, it's not so big a deal to download such updates.

There are new features as well. I mean, one of the notable ones is if you're wearing a mask face mask, and if you have an Apple watch, you can go into the case ID section of your settings on your phone, and you can say, allow my Apple watch to automatically unlock. My iPhone, when it texted, I'm wearing a mask.

So that avoids the hassle of having to type in a code, which also in the winter time, you often have gloves on and that can make it very difficult to tap on the screen of the phone. So that's a handy little feature with  in Australia and Vietnam. Apple finally switched on the ability to use the ECG. The electrocardiogram that's been something that's available since Apple watch series four.

And when now with Apple watch series six. So in Australia, we've had three generations. Yeah, it finally been approved by the TGA and there was talk that Apple actually didn't submit it to the TJ for some time. I'm not [00:31:00] sure why they didn't do that, but as more and more countries around the world had it switched on over the past three years.

Finally, the TGI did approve that even if it took some time to submit it for that approval, I checked it. Put your finger on the digital crown, and I have what's known as a sinus. Which is a normal sort of pulse, but if I have atrial fibrillation or some other sort of related heart condition that it could pick up, it would tell me, but it does warn you that it can detect heart attacks.

And if you are experiencing problems with your heart and you know, you're not feeling well, then definitely contact your doctor. But there have been people in the States who have received notifications, Hey, you got atrial fibrillation, go and see your doctor straight away. And they have histories of some people went into the operating theater pretty much right away.

So it's good to have this sort of functionality. And it's kind of that star Trek. Tri quarters sort of science-fiction tend to get sidetracked. Yeah. Yeah. It's a reality to be able to track yourself and compare that with previous readings and, you know, handy for you handle for your doctor. Indeed. Now also, have you got your new air tags yet?

I [00:32:00] received a text to review units from Apple. I got the full pack and they're smaller than the size of a 50 cent corn by the size of 20 cent corn in Australia. I take a seat. Uh, 2032 battery inside there's drugs online. This is one of the only products from Apple that has an easily removable battery, but this was the easiest way to do it.

And he didn't have to worry about recharging the battery relaxed a year, and the air tags are similar in operation to the tile or the Chipolo tags that are, have been on the market. For some time, they will allow you to track your keys, your luggage, backpacks, other devices that you are touching their tech to using Bluetooth low energy.

And there is a ultra wide band chip inside, which is compatible with the chip inside of the iPhone 11. And I find 12. And when you use one of those two iPhones to track an air tag, it actually can show you with precision, how far away you are. And it's got an arrow on screen that points in different directions to show you where the item is, and if you're getting hot or cold and it shows you how [00:33:00] many meters and how close you are.

So it's very handy, but what also sets the air tags apart. Is that all of the iPhones, iPads, and Macs that can ping those devices securely and anonymously via Bluetooth connect cause the repeater. So if you've left your keys across town or your backpack or something across town, I think requires an iPhone to sort of walk by it.

To receive this anonymous ping to then tell you, Hey, we detect your Airtech connected to whatever device was connected to in this location, walking down the road. And my iPhone could pick up someone else's air tags and automatically ping the owner. Your air tags are at this location, right? That's right.

Yeah. I mean, you wouldn't even know yet. And Apple doesn't know where the location of things are either. So it's not as if it can be used to track you. And people have said, well, what if somebody slips a tag into your pocket or something without you knowing it. And that has been following you for about three days, it will alert you on your phone that, Hey, we detected this unknown air tag.

And if you ignore that [00:34:00] after a while, stop also making the noise so that you can find it. You can imagine if someone slipped in there tagging into the lining of your jacket, JVs, I would never have thought of that. That sound makes the horror of Roy. From

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Your window on the universe. You've been listening to space-time with Stewart, Gary. This has been another quality podcast production from