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The Science & Technology News Thread
https://www.well-of-souls.com/forums/viewtopic.php?f=4&t=887
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Author:  Arioch [ Sat Sep 28, 2013 10:06 am ]
Post subject:  The Science & Technology News Thread

A team including scientists from the DOE demonstrated an "Accelerator on a Chip" that is 10 times more efficient in accelerating electrons than the current method used in the SLAC accelerator.

Image

http://phys.org/news/2013-09-chip.html


Author:  fredgiblet [ Sat Sep 28, 2013 10:50 am ]
Post subject:  Re: The Physics News Thread

Is there anything that lasers can't make better?

Author:  Count Casimir [ Sat Sep 28, 2013 11:29 am ]
Post subject:  Re: The Physics News Thread

I've said it before and I'll say it again: Science is the best thing ever.

Lasers are a close and somewhat related second.

Author:  Karst45 [ Sun Sep 29, 2013 9:24 am ]
Post subject:  Re: The Physics News Thread

fredgiblet wrote:
Is there anything that lasers can't make better?



http://i.imgur.com/BOZ33.jpg

Author:  Suederwind [ Tue Oct 01, 2013 3:10 am ]
Post subject:  Re: The Physics News Thread

Not sure if those two articles fit here or in that real aerospace thread. However, as they are about nuclear batteries, their safety and plutonium, I think its more fitting to post them here.

NASA’s Plutonium Problem Could End Deep-Space Exploration

and

Titanium Bullets, Rocket Sleds, and C-4: How the U.S. Tested the Safety of Nuclear Batteries

Author:  Arioch [ Sat Oct 05, 2013 9:10 pm ]
Post subject:  The Technology News Thread

I'm not sure what practical use this would have, but it's cool.



http://web.mit.edu/newsoffice/2013/simp ... -1004.html

Author:  Jakelope13 [ Sat Oct 05, 2013 11:58 pm ]
Post subject:  Re: The Technology News Thread

Arioch wrote:
I'm not sure what practical use this would have, but it's cool.
(video)
By all that's holy, we've invented REPLICATORS!!!
Nah, but it's an interesting concept. Maybe they can be used in construction somehow? Self-building cranes and whatnot

Author:  Charlie [ Sun Oct 06, 2013 1:03 am ]
Post subject:  Re: The Technology News Thread

I remember theses, the History Channel`s The Universe speculates that that a more advanced version of these will one day be Humanity`s explorers, when they can be made to build more of themselves.

Author:  Karst45 [ Mon Oct 07, 2013 7:08 pm ]
Post subject:  Re: The Technology News Thread

Arioch wrote:
I'm not sure what practical use this would have, but it's cool.


Portal room?

Charlie wrote:
I remember theses, the History Channel`s The Universe speculates that that a more advanced version of these will one day be Humanity`s explorers, when they can be made to build more of themselves.



Isnt that the main plot of X3:reunions? Humanity send those ship to explore and build jump gate, but they keep replicating and went to war with other species who saw them as treat, with a reason, disassembling a ship full of people to replicate yourself is quite a diplomatic faux pas.


But are that how borg cube are born?

Author:  Mikk [ Wed Oct 09, 2013 1:51 pm ]
Post subject:  Re: The Technology News Thread

Let's not confuse modular robotics (individual robots assebling a bigger unit) with self-replication (most likely to implemented using 3D printing as a major technology), shall we? Creepy critter cubes those.

Edit: typo

Author:  Arioch [ Wed Oct 09, 2013 2:34 pm ]
Post subject:  Re: The Technology News Thread

It irritates me when they mention self-replication in these articles, as that has absolutely nothing to do with this particular example.

Author:  Jakelope13 [ Wed Oct 09, 2013 2:53 pm ]
Post subject:  Re: The Technology News Thread

I wonder if you can use this modular, reconfigurable concept with sensors? It'd cut down on the number of probes we'd have to deploy (unless the area we want to explore is just too far out of range of previous probe launches).

Author:  Absalom [ Thu Oct 10, 2013 9:46 pm ]
Post subject:  Re: The Technology News Thread

Jakelope13 wrote:
I wonder if you can use this modular, reconfigurable concept with sensors? It'd cut down on the number of probes we'd have to deploy (unless the area we want to explore is just too far out of range of previous probe launches).
The number of probes? What kind of probes are you even talking about? Satellites are usually launched when an old one dies/is likely to die, or coverage needs to be increased. Units that travel beyond geosynchronous orbit are relatively few, often unique, and aren't likely to have the ability to go anywhere other than where they've been shot off towards. Were you talking about interstellar probes? Those will either be crewed, "one-time use", or include automatic factories and refineries.

Author:  Arioch [ Fri Oct 18, 2013 12:22 pm ]
Post subject:  Re: The Technology News Thread

Nothing mind-blowing, but I thought the presentation was cute.


Author:  Arioch [ Sat May 24, 2014 8:10 pm ]
Post subject:  Re: The Astronomy and Physics Thread

A cute demonstration of quantum levitation.


Author:  Grayhome [ Fri Sep 19, 2014 6:52 am ]
Post subject:  Re: The Physics & Technology News Thread

Hey check it out, bio suits might be coming online in the next decade or so.

Image


https://newsoffice.mit.edu/2014/second- ... suits-0918

Author:  NuclearIceCream [ Wed Oct 15, 2014 1:24 pm ]
Post subject:  Re: The Physics & Technology News Thread

I cant believe nobody posted this yet. http://sploid.gizmodo.com/lockheed-mart ... 1646578094

Fusion Ladies and Gentlemen, Fusion.

Author:  icekatze [ Wed Oct 15, 2014 3:28 pm ]
Post subject:  Re: The Physics & Technology News Thread

hi hi

I might post it in ten years, assuming it works as advertised. ;)

Author:  Arioch [ Thu Nov 17, 2016 11:57 am ]
Post subject:  Re: The Physics & Technology News Thread

The CRISPR gene-editing technique has been used in a human subject for the first time.

http://www.nature.com/news/crispr-gene- ... me-1.20988

CRISPR is a breakthrough technique that makes gene-editing quick and inexpensive to use.

Author:  maethalion [ Thu Dec 22, 2016 7:04 pm ]
Post subject:  Re: The Physics & Technology News Thread

Arioch wrote:
CRISPR is a breakthrough technique that makes gene-editing quick and inexpensive to use.


CRISPR is indeed pretty awesome.

This youtube video explains it pretty well (and the channel goes into depth a lot about space)
https://www.youtube.com/watch?v=jAhjPd4uNFY

Author:  ShadowDragon8685 [ Thu Dec 22, 2016 7:13 pm ]
Post subject:  Re: The Physics & Technology News Thread

icekatze wrote:
hi hi

I might post it in ten years, assuming it works as advertised. ;)


Let's hope. Let's really, really hope. We've been waiting for fusion for far too long.

Author:  Arioch [ Wed Jun 07, 2017 4:43 pm ]
Post subject:  Re: The Science & Technology News Thread

300,000 year old Homo Sapiens fossils found in Morocco. Pushing back the earliest known specimens by more than 100,000 years.

https://www.nytimes.com/2017/06/07/scie ... .html?_r=0

Author:  RedDwarfIV [ Tue Jun 13, 2017 5:30 pm ]
Post subject:  Re: The Physics News Thread

Suederwind wrote:
Not sure if those two articles fit here or in that real aerospace thread. However, as they are about nuclear batteries, their safety and plutonium, I think its more fitting to post them here.

NASA’s Plutonium Problem Could End Deep-Space Exploration

and

Titanium Bullets, Rocket Sleds, and C-4: How the U.S. Tested the Safety of Nuclear Batteries

http://www.bristol.ac.uk/news/2016/november/diamond-power.html
British scientists have developed a means of generating small amounts of power from nuclear waste in a safe manner. It probably won't replace RTGs, but it could make an excellent power source for cubesats or small probes and rovers.

Author:  icekatze [ Wed Jun 14, 2017 4:14 pm ]
Post subject:  Re: The Science & Technology News Thread

hi hi

This one is kind of interesting. I didn't realize 2-D magnets weren't a thing until now... but now they are!

Scientists discover a 2-D magnet.

Author:  Absalom [ Wed Jun 14, 2017 7:31 pm ]
Post subject:  Re: The Physics News Thread

RedDwarfIV wrote:
Suederwind wrote:
Not sure if those two articles fit here or in that real aerospace thread. However, as they are about nuclear batteries, their safety and plutonium, I think its more fitting to post them here.

NASA’s Plutonium Problem Could End Deep-Space Exploration

and

Titanium Bullets, Rocket Sleds, and C-4: How the U.S. Tested the Safety of Nuclear Batteries

http://www.bristol.ac.uk/news/2016/november/diamond-power.html
British scientists have developed a means of generating small amounts of power from nuclear waste in a safe manner. It probably won't replace RTGs, but it could make an excellent power source for cubesats or small probes and rovers.
I suspect that it will become a form of battery-backup, but it doesn't yet sound compelling as a primary powersource for anything high-power... and a lot of medium-power stuff too. If my math is right, then their 1 gram example would produce around 0.173611...e-3 watts if used in a continuous mode. The PIC10LF320/322 has numbers like 0.000036e-3 watts (sleep) to 0.025e-3 watts (at 1 MHz) consumption, so this could be used pretty directly, but for e.g. a rover, we find that the Sojourner (https://mars.nasa.gov/MPF/rover/descrip.html) used around 10 watts to move: roughly 50,000 times as much. You could just increase the amount that you use, but Sojourner only weighed 11,500 grams itself, so you wouldn't even equal the production of Sojourner's solar cells, which could peak-out around 15 watts.

So: very useful, but this isn't for rovers. Might be interesting to power FEEP (https://en.wikipedia.org/wiki/Field-emi ... propulsion) thrusters on deep-space missions.

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