Science News Thread (for articles that don't relate to ongoing discussions)

[DDE]

Giant otter

https://sciencepress.mnhn.fr/fr/periodiques/comptes-rendus-palevol/21/30

[DDE]

This is what sampling bias looks like.

The data is from the National UFO Reporting Center. Instead, many people posting this are going "LOL, Anglophones..."

[JoeSchmuckatelli]

It's not often you read this in actual science: 

Quote

Here we report on another superluminal motion measurement, at seven times the speed of light, leveraging Hubble Space Telescope precision astrometry and previous radio VLBI data for GW170817.

(emphasis, mine)

Optical superluminal motion measurement in the neutron-star merger GW170817 | Nature

In reporting on the paper, Grunge explains:

Quote

The energy jet's apparent superluminal motion is an optical illusion, according to Vice, but the new study, whose lead author is CalTech astrophysicist Kunal Mooley, does delve into the Lorentz factor — the factor by which length, mass and time change for an object moving at nearly the speed of light — of the jet.

...

"Our study represents, to our knowledge, the first proper motion constraint on the Lorentz factor of a gamma-ray burst jet indicating ultra-relativistic motion," or motion very close to the speed of light, the scientists write, per Nature. 

The Collision Between Two Neutron Stars Shattered Our Understanding Of The Universe (msn.com)

Edited October 23, 2022 by JoeSchmuckatelli

[RKunze]

10 minutes ago, JoeSchmuckatelli said:

It's not often you read this in actual science: 

Quote

Here we report on another superluminal motion measurement, at seven times the speed of light, leveraging Hubble Space Telescope precision astrometry and previous radio VLBI data for GW170817.

Well, the last couple of times I read something like this it turned out to be either some kind of measurement error (last I remember of those were the "superluminal neutrinos" detected in the "CERN Neutrinos to Gran Sasso" project) or a misunderstanding (or misquote) in popular media.

So, I won't hold my breath that this time all we know of physics will be overturned.

And — as you cited yourself — this times it seems to be in the misunderstanding/misquote category.  As far as I understand the actual paper (which can be found here as a preprint, in case you don't have one of those expensive Nature subscriptions), the authors do not claim that the jet is superluminal, only that it appears to be superluminal - the actual speed of the jet is "only" almost the speed of light (which in and of itself is impressive, but not really news - every serious particle accelerator here on earth manages to produce beams with 99.9% of the speed of light, so there's no reason why something as violent as a neutron star merger should not be able to do that just as well on a way bigger scale).

And then they use that measurement to determine a number of really interesting stuff about that neutron star merger - but that's another story...

[JoeSchmuckatelli]

Lag? 

A New Chip Is Capable of Transmitting All of the Internet's Traffic Every Second - IGN

In a new study published in the journal Nature Photonics, a team of researchers from the Technical University of Denmark has broken the record for the largest amount of data transferred in a single second. 

...

The researchers sent the data encoded on the light down a 7.9 km-long optical fiber and measured the amount of data transferred. It was discovered that the chip with its single infrared laser was able to transmit data at an astonishing rate of 1.84 petabits per second.

(Moore's not ded.)

[StrandedonEarth]

That’s a lot of cat videos…

[JoeSchmuckatelli]

6 hours ago, StrandedonEarth said:

That’s a lot of cat videos…

Why else would anyone need pet speed tech? 

[kerbiloid]

1 hour ago, JoeSchmuckatelli said:

Why else would anyone need pet speed tech? 

P-Hub

The whole. In a second.

[kerbiloid]

https://www.nasa.gov/feature/jpl/edward-stone-retires-after-50-years-as-nasa-voyager-s-project-scientist

Edward Stone Retires After 50 Years as NASA Voyager’s Project Scientist

[JoeSchmuckatelli]

There isn’t a solid theory to explain this

"The research, published Oct. 26 in Nature, shows how to make a kind of material in which the molecular fragments are jumbled and disordered, but can still conduct electricity extremely well."

... 

[Compared to traditional conductors, which] "... fundamentally ...organic and traditional metallic conductors share a common characteristic. They are made up of straight, closely packed rows of atoms or molecules. This means that electrons can easily flow through the material, much like cars on a highway. In fact, scientists thought a material had to have these straight, orderly rows in order to conduct electricity efficiently" (Emphasis added)

... 

"The [newly discovered material's] end result is unprecedented for a conductive material. “It’s almost like conductive Play-Doh—you can smush it into place and it conducts electricity,” Anderson said."

"the most striking thing was that the molecular structure of the material was disordered."

... 

"This goes against all of the rules we know about for conductivity.“ In principle, this opens up the design of a whole new class of materials that conduct electricity, are easy to shape, and are very robust in everyday conditions,”"

 

 

 

https://news.uchicago.edu/story/university-chicago-scientists-discover-material-can-be-made-plastic-conducts-metal

Edited October 27, 2022 by JoeSchmuckatelli
Clarity. The phone interface of this forum is klunky.

[Beamer]

On 10/23/2022 at 12:55 PM, DDE said:

This is what sampling bias looks like.

The data is from the National UFO Reporting Center. Instead, many people posting this are going "LOL, Anglophones..."

To be fair... https://updb.app/reports/country

But, like a wise person once said (I forgot who but I assume they were wise): "If you have to walk 30 miles to the nearest well and aren't sure you can put food on the table for your children and you see a light in the sky, you probably think `I've got bigger problems to deal with`".

 

[JoeSchmuckatelli]

3 hours ago, JoeSchmuckatelli said:

There isn’t a solid theory to explain this

"The research, published Oct. 26 in Nature, shows how to make a kind of material in which the molecular fragments are jumbled and disordered, but can still conduct electricity extremely well."

... 

[Compared to traditional conductors, which] "... fundamentally ...organic and traditional metallic conductors share a common characteristic. They are made up of straight, closely packed rows of atoms or molecules. This means that electrons can easily flow through the material, much like cars on a highway. In fact, scientists thought a material had to have these straight, orderly rows in order to conduct electricity efficiently" (Emphasis added)

... 

"The [newly discovered material's] end result is unprecedented for a conductive material. “It’s almost like conductive Play-Doh—you can smush it into place and it conducts electricity,” Anderson said."

"the most striking thing was that the molecular structure of the material was disordered."

... 

"This goes against all of the rules we know about for conductivity.“ In principle, this opens up the design of a whole new class of materials that conduct electricity, are easy to shape, and are very robust in everyday conditions,”"

 

 

 

https://news.uchicago.edu/story/university-chicago-scientists-discover-material-can-be-made-plastic-conducts-metal

Note: that's different from this stuff; but might be interesting to see if the two get together somehow.  

Maybe Soon^TM?

?

[kerbiloid]

37 minutes ago, JoeSchmuckatelli said:

Maybe Soon^TM?

?

Or sooner.

Spoiler

 

[DDE]

1 hour ago, kerbiloid said:

Or sooner.

  Hide contents

 

Oh, come on, I've just bought Terminator: Resistance, and you post this?

Spoiler

 

[JoeSchmuckatelli]

I mentioned this story in a different thread for a different purpose, but two recent meteorite impacts on Mars are causing researchers to rethink how Mars formed and whether there is current volcanic activity.

Quote

 

team of international researchers analysed data from Insight’s seismometer, which has recorded more than 1,300 marsquakes.

Based on their findings, published in the journal Nature Astronomy, the experts believe volcanic activity is still present on the planet, in shaping the Martian surface with magma – hot molten and semi-molten liquid – flowing beneath.

 

Quote

 

These vibrations, or seismic surface waves, gave scientists an insight into the structure of the Martian crust, which may hold important clues about the origin and evolution of the planet.

‘This is the first time seismic surface waves have been observed on a planet other than Earth,’ said Doyeon Kim, a geophysicist and senior research scientist at ETH Zurich’s Institute of Geophysics.

‘Not even the Apollo missions to the Moon managed it.’

The researchers used data from the Insight lander to determine the structure of the crust at depths of between roughly five and 30 kilometres below the surface of Mars.

They found that the crust was denser than previously thought.

 

 

Centuries-old Martian mystery finally solved as scientists make 'remarkable' discovery (msn.com)

[kerbiloid]

NASA will fly (not whole, but a probe) to Psyche in 2023.

https://www.nasa.gov/feature/nasa-continues-psyche-asteroid-mission

[Nuke]

On 10/27/2022 at 7:17 AM, JoeSchmuckatelli said:

There isn’t a solid theory to explain this

"The research, published Oct. 26 in Nature, shows how to make a kind of material in which the molecular fragments are jumbled and disordered, but can still conduct electricity extremely well."

... 

[Compared to traditional conductors, which] "... fundamentally ...organic and traditional metallic conductors share a common characteristic. They are made up of straight, closely packed rows of atoms or molecules. This means that electrons can easily flow through the material, much like cars on a highway. In fact, scientists thought a material had to have these straight, orderly rows in order to conduct electricity efficiently" (Emphasis added)

... 

"The [newly discovered material's] end result is unprecedented for a conductive material. “It’s almost like conductive Play-Doh—you can smush it into place and it conducts electricity,” Anderson said."

"the most striking thing was that the molecular structure of the material was disordered."

... 

"This goes against all of the rules we know about for conductivity.“ In principle, this opens up the design of a whole new class of materials that conduct electricity, are easy to shape, and are very robust in everyday conditions,”"

 

 

 

https://news.uchicago.edu/story/university-chicago-scientists-discover-material-can-be-made-plastic-conducts-metal

coming soon to a spool of 3d printer filament near you.

[JoeSchmuckatelli]

12 minutes ago, Nuke said:

coming soon to a spool of 3d printer filament near you.

That would actually make 3d printing quite interesting!

[Nuke]

8 hours ago, JoeSchmuckatelli said:

That would actually make 3d printing quite interesting!

non-planner circuit boards come to mind. use a dual head extruder to lay down conductive traces and another the substrate. be able to print capacitors and resistors in place (brownie points for 3d printed semiconductors), other components could be installed later with conductive epoxy. i mean you can get conductive filaments now, but i have a feeling there is still quite a bit of room for improvement. if the conductive filament puts out a lot of strings it might short out some connections. were still a long way from being able to do what you can do with a chem etch board, but i hope they find a way to close the gap. 

Edited October 30, 2022 by Nuke

[Gargamel]

10 hours ago, JoeSchmuckatelli said:

That would actually make 3d printing quite interesting!

I have a hard enough time getting the bed level when it's not shocking me and squirming around.  

[darthgently]

On 10/23/2022 at 6:55 AM, DDE said:

This is what sampling bias looks like.

The data is from the National UFO Reporting Center. Instead, many people posting this are going "LOL, Anglophones..."

Strangely, the per capita ownership of high quality smartphone cameras is really high in those areas also.  Where are all the non-blurry pictures?  

[kerbiloid]

2 hours ago, darthgently said:

Strangely, the per capita ownership of high quality smartphone cameras is really high in those areas also.  Where are all the non-blurry pictures?  

Cats. They distract attention and occupy the imageboards and blogs. They are in cahoots with UFO.

Interesting, do the cats (or at least the non-cat animals) see the UFO and react on them?

Do the survived UFO witnesses ever mention the animal reaction?

Edited October 30, 2022 by kerbiloid

[StrandedonEarth]

1 hour ago, kerbiloid said:

Cats. They distract attention and occupy the imageboards and blogs. They are in cahoots with UFO.

1 hour ago, kerbiloid said:

Do the survived UFO witnesses ever mention the animal reaction?

I'm guessing "they all ran away!" Except for the odd clueless cow, of course.

[kerbiloid]

But was there at least one story when a dog was barking at the UFO before running away?

 

[darthgently]

4 hours ago, kerbiloid said:

But was there at least one story when a dog was barking at the UFO before running away?

 

I think there may have been two. Or maybe ten. Or more