M Thomas Apple Author Page

Science fiction, actual science, history, and personal ranting about life, the universe, and everything

“Superconductor”? Color me skeptical

August 11, 2023
MThomas

Superconductors are materials that allow electrical current to flow with no resistance, a property that would revolutionize power grids where energy is lost in transmission as well as advance fields such as computing chips, where electrical resistance acts as a speed limit.

https://www.nbcnews.com/science/science-news/superconductor-claims-spark-investor-frenzy-scientists-are-skeptical-rcna98123

I’ve heard claims like this before.

The hallmark of science is replicability. I.e., can two independent teams of researchers, using similar means, methods, and materials in completely different settings, replicate the findings of the original team?

So…

Researchers from at least three Chinese universities have in recent days said they produced versions of LK-99 with varying results. One team from the Huazhong University of Science and Technology posted a video purporting to show the material levitating over a magnet, which is important because true superconductors can float over a magnet in any orientation, without spinning like a compass.

But…

…another team, from Qufu Normal University, said they did not observe zero resistance, one of required characteristics of a superconductor. A third, from the Southeast University in the eastern Chinese city of Nanjing, said they measured zero resistance, but only at a temperature of 110 Kelvin (-163 degree Celsius).

And…

The possible bad news for LK-99 is that the superconducting field is full of materials that hold promise at first but fall apart under scrutiny. Researchers even have a handy name for them — unidentified superconducting objects.

A.k.a “USOs.” As the linked article points out, plenty of smart, hardworking researchers have claimed to have found a “superconductor,” but then their claims simply fall apart under scrutiny.

Be careful of finding what you seek.

UA what?

July 28, 2023
MThomas

US Congress: We want the truth!

Former military pilots: UAP is real!

Me: Wtf is a “UAP”?

Chandrayaan-3 to the Moon!

July 19, 2023
MThomas

I love the helpful explanation about the scale…

“If we want to develop the Moon as an outpost, a gateway to deep space, then we need to carry out many more explorations to see what sort of habitat would we be able to build there with the locally-available material and how will we carry supplies to our people there,” Mr Annadurai says.

https://www.bbc.com/news/world-asia-india-66185565

Chandrayaan-1 was India’s first successful Moon launch in 2008 — it deliberately crashed in order to measure the amount of water at the South Pole.

Chandrayaan-2 was only partly successful, as it did put an orbiter around the Moon, but the rover crashed. (The orbiter is still there, sending back information on a regular basis.)

Now, Chandrayaan-3 aims to finally land a rover and do some research exploring.

Let’s hope they can get it to land safely this time…

10 things I know to be absolutely certain

July 17, 2023
MThomas

List 10 things you know to be absolutely certain.

1. I know it to be certain that the wording of this prompt is a bit odd. Is this meant to mean “know to be true”?

2. I know it to be absolutely certain that there are many things about which I am far from certain.

3. I also know it to be absolutely certain that at least one of the things I know to be certain will annoy at least one person who reads this.

4. I also also know it to be absolutely certain that at least one of the things to know to be certain will amuse at least one person.

5. One of these things I know to be absolutely certain may even irritate and amuse the same person (👈 maybe even this one right here).

6. I even know it to be absolutely certain that writing a list of ten things that are absolutely certain takes a considerably longer time than I had initially anticipated.

7. Just to be sure I irritate someone, it is absolutely certain that the world is a warmer place than it was when I was a kid 40 years ago.

8. The fact that June 2023 was the hottest month on record is absolutely certain.

9. I know it to be absolutely certain, however, that we have only been keeping records on temperatures worldwide since the late 1880s, and records were measured using different instruments

10. But the most important thing to be absolutely certain that I know is that Sony says they have the technology to make humanoid robots but can’t figure out what to use them for. I have an idea or two about that…

Dr Strangelove adaptation in the works

July 16, 2023
MThomas

Check out this screen rant page if you have no idea what I’m talking about…

Or, how I learned to stop worrying and love the bomb…

“During the adaptation, Stanley ran into a wall: it was impossible to make a successful film about the end of mankind since nobody, himself included, would want to see it. The answer was satire…”

https://www.theguardian.com/film/2023/jul/15/stanley-kubrick-dr-strangelove-stage-adaptation-armando-iannucci

Dr. Strangelove itself was an adaptation of a novel. So I wonder how adapting an adaptation to the stage will work.

How many new lines will they allow? Peter Sellers basically ad libbed everything and Kubrick rewrote the script to match the ad libs.

Probably including this one:

(Btw I hadn’t realized the film won a Hugo Award…along with many other awards…which goes to show how little we actually need Hollywood studios to get great stories in the end…)

The future looks like…

July 11, 2023
MThomas

What are you most excited about for the future?

I look forward to seeing whether the future looks more like WALL-E…

…or Star Trek…

…or maybe some combination thereof…

Robots say they won’t steal jobs or rebel

July 8, 2023
MThomas

Meet Sophia, one of nine robots at the first “human-AI forum” in Switzerland.

Ai-Da, a robot artist that can paint portraits, echoed the words of author Yuval Noah Harari who called for more regulation during the event where new AI rules were discussed.

“Many prominent voices in the world of AI are suggesting some forms of AI should be regulated and I agree,” it said.

But Desdemona, a rock star robot singer in the band Jam Galaxy with purple hair and sequins, was more defiant.

“I don’t believe in limitations, only opportunities,” it said, to nervous laughter. “Let’s explore the possibilities of the universe and make this world our playground.”

https://www.reuters.com/technology/robots-say-they-wont-steal-jobs-rebel-against-humans-2023-07-07/

<cue nervous laughter in readers>

Synthetic human embryos – yeah, now *that’s* not controversial…

July 7, 2023
MThomas

The synthetic embryos – only days or weeks old – could help researchers study the earliest stages of human development and explain pregnancy loss. 

Nobody is currently suggesting growing them into a baby.

https://www.bbc.com/news/health-65914934

Well, that’s a relief….

This is the first time that has been achieved using human material. Although, they are not truly “synthetic”, as the starting material was cells cultured from a traditional embryo in the laboratory.

Great, but…

She has already developed synthetic mouse embryos with evidence of a developing brain and beating heart.

Come on, BBC. I think you can see where this is going…

Meanwhile, scientists in China have implanted synthetic monkey embryos into female monkeys – although, all the pregnancies failed.

Yep. Straight to the monkey house.

Seriously, did scientists actually think this was not going to cause a whole lot of people to get upset all over again?

Natural embryo (top), synthetic embryo (bottom). They look pretty similar…

This may indeed be a good way to study infertility causes and how embryos develop, but even the possibility of creating an embryo from a stem cell should have set off warning bells. 14-day limit or not, somebody’s going to get really tempted to do something else with them…

I’m thinking up all sorts of SciFi stories from this…

And no, I have no idea why Jetpack/WordPress did that

July 5, 2023
MThomas

Post once, get them twice!

No idea why my post about UV appeared twice.

Maybe it’s something to do with my connection speed on the train home…

Another James Webb discovery: UV actually helps life

July 3, 2023
MThomas

Images of the Orion Nebula, c/o ESA and NASA (it’s complicated…)

For the first time ever, a team of international scientists detected a carbon compound known as methyl cation (pronounced cat-eye-on), or CH3+, in d203-506. CH3+ is significant for understanding how life began on Earth — and how it might develop elsewhere.

https://www.astronomy.com/science/jwst-spots-a-molecule-vital-to-life-in-protoplanetary-disk/

Ultraviolet radiation (UV) is known for destroying complex carbon-based molecules. But could it also provide the energy for them to exist?

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