Author Topic: Fun for nerds  (Read 171585 times)

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Online RoGeorgeTopic starter

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Re: Fun for nerds
« Reply #225 on: June 05, 2021, 04:20:22 pm »


 ???

Online RoGeorgeTopic starter

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Re: Fun for nerds
« Reply #226 on: June 18, 2021, 03:40:03 pm »
Quote
"The fact that something has temperature is a reflection of the idea that it interacts with stuff around it," Sudhir says. "And it's harder to isolate larger objects from all the things happening around them."
Source:  https://phys.org/news/2021-06-physicists-human-scale-standstill-quantum-state.html

 :o

Online RoGeorgeTopic starter

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Offline BU508A

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Re: Fun for nerds
« Reply #228 on: June 24, 2021, 01:59:01 pm »
Physicists show that flying beer coasters will flip 0.45 seconds into flight

"University of Bonn physicists were inspired to investigate the aerodynamics of flying beer mats after traveling to Munich with a German physics demonstration show."

https://arstechnica.com/science/2021/06/the-physics-of-why-that-flying-beer-coaster-is-nothing-like-a-frisbee/
“Chaos is found in greatest abundance wherever order is being sought. It always defeats order, because it is better organized.”            - Terry Pratchett -
 

Online RoGeorgeTopic starter

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Re: Fun for nerds
« Reply #229 on: June 24, 2021, 07:08:57 pm »


 :o

Online RoGeorgeTopic starter

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Re: Fun for nerds
« Reply #230 on: June 25, 2021, 08:46:14 pm »
m-Widar, like a RADAR, but uses many Tx points, sparsity, random patterns, correlation and a post processing technique called transient rendering.  Can see you behind walls or indoors at 300+ kiloFPS!  :o

Quote
The transmitting antennas operated at frequencies from 200 megahertz to 10 gigahertz [...]. The receiver consisted of two antennas connected to a signal digitizer. The digitized data were transferred to a laptop computer and uploaded to the graphics processing unit to reconstruct the images.

The NIST team used the method to reconstruct a scene with 1.5 billion samples per second, a corresponding image frame rate of 366 kilohertz (frames per second). [...]

With 12 antennas, the NIST system generated 4096-pixel images, with a resolution of about 10 centimeters across a 10-meter scene.
Source:  https://phys.org/news/2021-06-method-radio-image-hidden.html

Online RoGeorgeTopic starter

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Re: Fun for nerds
« Reply #231 on: June 30, 2021, 03:40:35 pm »
Reactive Ion Etching (RIE) for better homemade computer chips   8)


Source:  https://hackaday.com/2021/06/29/garage-semiconductor-fab-gets-reactive-ion-etching-upgrade/
« Last Edit: June 30, 2021, 03:42:53 pm by RoGeorge »
 
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Offline T3sl4co1l

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Re: Fun for nerds
« Reply #232 on: July 02, 2021, 06:58:50 am »
Damn fine (up and coming?) science channel:

https://www.youtube.com/c/AlphaPhoenixChannel/videos

YT being what it is, I'm shocked I haven't seen this sooner; alas!

Tim
Seven Transistor Labs, LLC
Electronic design, from concept to prototype.
Bringing a project to life?  Send me a message!
 
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Online RoGeorgeTopic starter

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Re: Fun for nerds
« Reply #233 on: July 04, 2021, 09:18:32 am »


Gold!   :-+
 
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Offline BU508A

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Re: Fun for nerds
« Reply #234 on: July 12, 2021, 11:38:48 am »
I can't see a problem here.
The topic is saying "Fun for nerds".
So, if someone here is finding this interesting (and having therefore a bit fun), then I'd call it on-topic.  :-+ :D
“Chaos is found in greatest abundance wherever order is being sought. It always defeats order, because it is better organized.”            - Terry Pratchett -
 

Online RoGeorgeTopic starter

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Re: Fun for nerds
« Reply #235 on: July 12, 2021, 12:16:52 pm »
I can't see a problem here.
The topic is saying "Fun for nerds".
So, if someone here is finding this interesting (and having therefore a bit fun), then I'd call it on-topic.  :-+ :D

That's true, but also it would be a slippery slope.
Meanwhile I changed my mind, and deleted my previous offtopic post. 

Online RoGeorgeTopic starter

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Re: Fun for nerds
« Reply #236 on: July 18, 2021, 03:37:44 pm »
The Story of Shor's Algorithm, Straight From the Source | Peter Shor   :popcorn:



Online RoGeorgeTopic starter

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Re: Fun for nerds
« Reply #237 on: July 21, 2021, 08:45:17 pm »
Heat conduction in crystals
xofunkox-scientific experiments



Fourier would have loved that   ;D

Online RoGeorgeTopic starter

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Re: Fun for nerds
« Reply #238 on: July 22, 2021, 04:32:45 pm »
Operational Amplifier with Switchable Gain
All Electronics Channel



 :-+

Online RoGeorgeTopic starter

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Re: Fun for nerds
« Reply #239 on: July 23, 2021, 07:55:20 am »
I Invented a New Material: Hydrophobic Slime
The Action Lab



 ???

Offline Sal Ammoniac

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Re: Fun for nerds
« Reply #240 on: August 04, 2021, 05:57:12 pm »
"That's not even wrong" -- Wolfgang Pauli
 

Offline BU508A

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Re: Fun for nerds
« Reply #241 on: August 04, 2021, 09:37:37 pm »
 :-DD

Well, then let's hope, that his wife isn't Sabine Hossenfelder or similar.  >:D  :box:

Her YouTube channel:
https://www.youtube.com/c/sabinehossenfelder
“Chaos is found in greatest abundance wherever order is being sought. It always defeats order, because it is better organized.”            - Terry Pratchett -
 

Online RoGeorgeTopic starter

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Re: Fun for nerds
« Reply #242 on: August 04, 2021, 10:25:46 pm »




IDK, is the PIN = 3112, because the denominator seems to be just bait.   :-//


Online RoGeorgeTopic starter

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Re: Fun for nerds
« Reply #243 on: August 12, 2021, 09:36:03 am »
Trapping Particles In a Beam of Light—The Optical Tweezers Experiment
The Action Lab



 8)

Online RoGeorgeTopic starter

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Re: Fun for nerds
« Reply #244 on: August 12, 2021, 05:27:32 pm »
The Surprising Genius of 3D Printed Rockets
Veritasium



 :o

Online RoGeorgeTopic starter

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Re: Fun for nerds
« Reply #245 on: August 14, 2021, 07:08:21 am »
Upgraded Homemade Silicon IC Fab Process
Sam Zeloof



 8)
 
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Online RoGeorgeTopic starter

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Re: Fun for nerds
« Reply #246 on: August 16, 2021, 07:29:36 am »
Intel 486: 30 years old and still fascinating
From a new channel:   Micrographia   :-+


Online RoGeorgeTopic starter

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Re: Fun for nerds
« Reply #247 on: August 25, 2021, 11:51:50 pm »
Joscha Bach: Nature of Reality, Dreams, and Consciousness | Lex Fridman Podcast #212
 :popcorn:



Same invitee, same podcast, part one from a year ago:
Joscha Bach: Artificial Consciousness and the Nature of Reality | Lex Fridman Podcast #101

Offline jmelson

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Re: Fun for nerds
« Reply #248 on: August 30, 2021, 02:31:47 am »
HOLY crap!  That video by Sam Zeloof is totally incredible!  He sure has some serious test gear there, too!
Jon
 

Online RoGeorgeTopic starter

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Re: Fun for nerds
« Reply #249 on: September 09, 2021, 11:35:15 am »
AT&T Archives: Similiarities of Wave Behavior (Bonus Edition)
AT&T Tech Channel

 
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