Are these SpaceX’s Starlink satellites?

Looks like I may have found the orbital elements (TLEs) of SpaceX’s Starlink Internet satellites. I noticed on SatView’s site that three objects entered orbit on 22 February, one of which was SpaceX’s PAZ satellite. PAZ was the primary payload on SpaceX’s most recent Falcon 9 flight and the Starlink birds were the secondaries.

Starlink orbits!

Following Satview’s links takes you to the real-time tracking of 43616U and 43617U (International Designators 2018-020A & 2018-020B), two satellites that are almost certainly Starlink’s TinTin A & B (or Microsat 2A & 2B). They show up in NORAD’s catalog as the bland descriptions of “Object B” and “Object C” and were launched from Vandenberg Air Force Base on the same day as PAZ. From CelesTrak:

So now I know both what to look for and where and when to look for it. Now I need to acquire the gear to acquire the signals, which might be the biggest stumbling block of all. Well, aside from actually decoding any signals I happen to get.

Yes, folks, this actually is rocket science.

There’s a better way to use a standing desk | Popular Science

I’m a little skeptical that a standing desk could be worse for you than sitting on your ass all day. I’m certainly not going to take as gospel a study with a mere 20 participants in it. As for the Canadian study, I have my doubts, too, but need to delve further into the science.

Often I think these studies are driven by the disdain that Sitters often show towards Standers. Desk discrimination is what it is.

There’s always that one person in the office—you know the one. The one with the standing desk. Whenever you happen to pass their cube you think, wow, there’s a person being proactive about their health. There’s someone fighting the good fight against modern society’s unavoidably sedentary lifestyle. Good on them, bad on me.

But is that really true? A growing body of evidence suggests that yes, sitting for long periods of time can have a detrimental effect on your health. But unfortunately, standing for large spans of the day isn’t that great either. And a recent study adds to this pile. This month in the journal Ergonomics, researchers report that when they had 20 participants stand for two hours at a time, subjects showed an apparent increase in lower limb swelling and decreased mental state.

Source: There’s a better way to use a standing desk | Popular Science

Hacking and tracking SpaceX’s Starlink Internet satellites

Starlink Microsat/TinTin

Update 1 March: I found the satellites!

As my family and I strolled our neighborhood at sunset, my eagle-eyed son spotted a light in the sky sliding slowly away from us before fading. At first we thought it was the International Space Station (ISS) but it was too dim for that. We decided it was a low-earth orbit satellite and the conversation shifted to SpaceX’s recent launch of two low-earth-orbit test satellites for their proposed satellite Internet service, Starlink.

I have no idea whether the satellite we watched is a Starlink Satellite (more formally called TinTin A & B and previously known as Microsat 2A and 2B). I didn’t have my satellite tracking app fired up on my phone at the time. It did get me thinking, though, that it would be fun to track the TinTin satellites to see what I could discover.

A search on the Internet reveals very little information about these birds. I have not yet found the two-line elements (TLE) which describe their orbits. They haven’t been mentioned on my satellite-tracking email list, either.

What if I could locate them, then what? I’d like to try to collect whatever telemetry is being broadcast, even if it’s just beeps. Better yet, I could capture the data stream from the Internet side but that would be challenging to do anything with as it’s said to be encrypted. The birds do have imagery capability. What if I could tune into that and download an image snapped from orbit? Wouldn’t that be cool!
Continue reading →

Lessons on Aging Well, From a 105-Year-Old Cyclist – The New York Times

Monsieur Marchand is my new hero.

At the age of 105, the French amateur cyclist and world-record holder Robert Marchand is more aerobically fit than most 50-year-olds — and appears to be getting even fitter as he ages, according to a revelatory new study of his physiology.

The study, which appeared in December in The Journal of Applied Physiology, may help to rewrite scientific expectations of how our bodies age and what is possible for any of us athletically, no matter how old we are.Many people first heard of Mr. Marchand last month, when he set a world record in one-hour cycling, an event in which someone rides as many miles as possible on an indoor track in 60 minutes.

Mr. Marchand pedaled more than 14 miles, setting a global benchmark for cyclists age 105 and older. That classification had to be created specifically to accommodate him. No one his age previously had attempted the record.

Mr. Marchand, who was born in 1911, already owned the one-hour record for riders age 100 and older, which he had set in 2012.

It was as he prepared for that ride that he came to the attention of Veronique Billat, a professor of exercise science at the University of Evry-Val d’Essonne in France. At her lab, Dr. Billat and her colleagues study and train many professional and recreational athletes.
Continue reading →

Radiation Will Tear Elon Musk’s Rocket Car to Bits in a Year

Plastics expert Dr. William Carroll of Indiana University says Elon Musk’s Starman Tesla is no match for the rough-and-tumble environment of space.

The real forces that will tear the car apart over hundreds of millions of years in space, Carroll said, are solid objects and — most importantly — radiation.

Even if the car avoids any major collisions, over very long time horizons, it’s unlikely the vehicle could avoid the kind of collisions with micrometeorites that leave other space junk riddled with craters over time, Carroll said.

But assuming those collisions don’t completely tear the car apart, the radiation will.

Down on Earth, a powerful magnetic field and the atmosphere largely protect human beings (and Tesla Roadsters) from the harsh radiation of the sun and cosmic rays. But spacefaring objects have no such protections.

Source: Radiation Will Tear Elon Musk’s Rocket Car to Bits in a Year

Trump’s Would-Be Weather Czar Tried to Shut Down Free Forecasts | Vanity Fair

Oh, for fuck’s sake. The story of today’s erroneous tsunami warning quoted AccuWeather CEO Barry Myers, who Trump tapped to lead NOAA. I had no idea that Myers was up for this position.

This would be another case of Trump trying to destroy government from the inside. Myers’s company AccuWeather tried to quash free forecasts: one of the most useful and lifesaving services of the federal government.

Fuck this guy and fuck Trump for nominating him.

As extreme weather conditions and natural disasters lay waste to Northern California and Puerto Rico, Donald Trump is poised to hand over control of the National Oceanic and Atmospheric Administration—the government organization that focuses on weather and climate research—to a known opponent of the agency. Barry Myers, the C.E.O. of for-profit weather forecasting service AccuWeather, has supported measures that would limit how much information the National Weather Service can publicly release, so private companies like his can use N.W.S. data to sell their own products to consumers.

Source: Trump’s Would-Be Weather Czar Tried to Shut Down Free Forecasts | Vanity Fair

How Insulin Became Unaffordable | Harvard Political Review

This is appalling. People are dying because they can’t afford insulin.

The U.S. health care is broken. Only single-payer will fix it and I will support any politician who supports it. No one should die over profits!

On May 20, 2017, Smith turned 26, aging out of his parents’ insurance. Because he was a single man with a decent job, Smith didn’t qualify for subsidies under the Affordable Care Act. The most inexpensive plan Smith and his mother could find on the Minnesota exchange was around $450 per month with a $7600 deductible. Smith could have afforded the monthly premiums, but the deductible made the plan too expensive. Although the family had been researching plans for Smith since February, he had to go off of health insurance entirely.

When Smith went to the pharmacy to pick up his insulin in early June, the bill was over $1300 without insurance. He couldn’t afford the medicine that day, and decided to ration his remaining insulin until he was paid. Smith did not tell his family that he was adjusting his carbohydrate intake so he could lower his dosage.

“He knew the signs of being in trouble with his diabetes,” Smith-Holt told the HPR. “But when your body starts shutting down like that, you’re not making very clear, rational decisions.”

On June 25, Smith went to dinner with his girlfriend, where he complained about stomach pains. It was the last time anyone saw him alive. He called in sick to work the next day. On June 27, Smith was found dead in his apartment.

Source: How Insulin Became Unaffordable | Harvard Political Review

Sound bite: Despite Pono’s promise, experts pan HD audio – CNET

This isn’t a new story but it’s one that I found very enlightening on the topic of digital audio formats.

Pono Music’s roaring success on Kickstarter, raising $4.3 million so far, shows that thousands of people believe better audio quality is worth paying for.

The company — backed by star musician Neil Young and selling a $400 digital audio player along with accompanying music — promises people will hear a difference between Pono Music and ordinary music that’s “surprising and dramatic.” The company’s promise is based in part on music files that can contain more data than not only conventional MP3 files, but also compact discs.

There’s no doubt that highly compressed music files, played over tinny laptop speakers or cheap earbuds, leave a lot of room for improvement. But outdoing CD quality? That’s a harder sell.

Source: Sound bite: Despite Pono’s promise, experts pan HD audio – CNET

The Startling Link Between Sugar and Alzheimer’s – The Atlantic

I’ve considered high-carb diets to be dangerous, and this troubling research linking high-carb diets to cognitive decline gives me yet another reason to avoid excessive carbs. Yikes!

In recent years, Alzheimer’s disease has occasionally been referred to as “type 3” diabetes, though that moniker doesn’t make much sense. After all, though they share a problem with insulin, type 1 diabetes is an autoimmune disease, and type 2 diabetes is a chronic disease caused by diet. Instead of another type of diabetes, it’s increasingly looking like Alzheimer’s is another potential side effect of a sugary, Western-style diet.

In some cases, the path from sugar to Alzheimer’s leads through type 2 diabetes, but as a new study and others show, that’s not always the case.

A longitudinal study, published Thursday in the journal Diabetologia, followed 5,189 people over 10 years and found that people with high blood sugar had a faster rate of cognitive decline than those with normal blood sugar—whether or not their blood-sugar level technically made them diabetic. In other words, the higher the blood sugar, the faster the cognitive decline.

Source: The Startling Link Between Sugar and Alzheimer’s – The Atlantic

Could a bubbling Canaries volcano see Britain engulfed by killer tsunami?

A tsunami wave, perhaps 100 feet tall, will wreak havoc on the U.S. east coast the day that the Canary Islands’ La Palma volcano blows up. Increased seismic activity has experts worried that day is coming sooner rather than later. Are we ready?

WHEN you think about tsunamis, you don’t tend to picture the killer waves crashing down on British beaches.But with a volatile volcano in La Palma ready to blow, the government is now drawing up plans for dealing with monster waves on the British coast.

The terrifying truth is that we’re largely in the dark about tsunamis, and it’s difficult to say with any certainty when Britain will next see a killer wave.But many volcano experts point to Cumbre Vieja, an active volcanic ridge on La Palma, in the Canary Islands, as a probable source of a future tsunami.

With seismic activity picking up in the area, volcano monitors are on high alert over fears that an eruption could send a huge chunk of the mountain crashing into the sea – triggering a monster tsunami.

There’s still debate around how big the tsunami would be by the time it reaches Britain, although there are fears that waves as high as 25 metres could threaten New York and Miami.

Source: Could a bubbling Canaries volcano see Britain engulfed by killer tsunami?