Author Topic: Fun for nerds  (Read 171532 times)

0 Members and 1 Guest are viewing this topic.

Offline RoGeorgeTopic starter

  • Super Contributor
  • ***
  • Posts: 6462
  • Country: ro
Re: Fun for nerds
« Reply #500 on: June 18, 2023, 03:39:01 pm »
How a Lithium Ion Battery Actually Works // Photorealistic // 16 Month Project
The Limiting Factor



 :-+
 
The following users thanked this post: MegaVolt

Offline quadtech

  • Regular Contributor
  • *
  • Posts: 62
  • Country: in
Re: Fun for nerds
« Reply #501 on: June 20, 2023, 06:00:21 am »
An interesting video on the guy who deciphered the Linear B - it is a bit shallow on the details, but there are other videos which dwell on that.

https://youtu.be/9Fn9wVPAYAo
 

Offline RoGeorgeTopic starter

  • Super Contributor
  • ***
  • Posts: 6462
  • Country: ro
Re: Fun for nerds
« Reply #502 on: June 20, 2023, 12:26:07 pm »
Series circuit - 6 LEDs - how does it work?
Henryk Gasperowicz



 ;D

Offline RoGeorgeTopic starter

  • Super Contributor
  • ***
  • Posts: 6462
  • Country: ro
Re: Fun for nerds
« Reply #503 on: June 22, 2023, 09:14:13 am »
1941 A DIY Fresnel Lens From Tube
Robert Murray-Smith



 8)

Offline RoGeorgeTopic starter

  • Super Contributor
  • ***
  • Posts: 6462
  • Country: ro
Re: Fun for nerds
« Reply #504 on: June 23, 2023, 08:01:19 am »
Desoldering Made Easy - Amazing Trick || Soldering Tutorial
Mr SolderFix



 :-+

similar approach (bridge all with copper wire and flood with solder before desoldering):


« Last Edit: June 23, 2023, 08:02:56 am by RoGeorge »
 

Offline RoGeorgeTopic starter

  • Super Contributor
  • ***
  • Posts: 6462
  • Country: ro
Re: Fun for nerds
« Reply #505 on: June 24, 2023, 09:14:07 am »
Make A Simple Solder Pot From A Soldering Iron 🤔 AMAZING !
Mr SolderFix



 :-+

Offline RoGeorgeTopic starter

  • Super Contributor
  • ***
  • Posts: 6462
  • Country: ro
Re: Fun for nerds
« Reply #506 on: July 02, 2023, 06:59:13 pm »
60GHz mmWave Simulation with openEMS & Blender - Radiation Pattern
Sam A



 :o

As seen in https://www.eevblog.com/forum/projects/electromagnetic-simulations-renders-with-openems-blender/
 
The following users thanked this post: MegaVolt

Offline RoGeorgeTopic starter

  • Super Contributor
  • ***
  • Posts: 6462
  • Country: ro
Re: Fun for nerds
« Reply #507 on: July 03, 2023, 05:44:40 am »
Magical Moors - A Mysterious World Full of Life | Free Documentary Nature
Free Documentary - Nature



 ^-^

Offline RoGeorgeTopic starter

  • Super Contributor
  • ***
  • Posts: 6462
  • Country: ro
Re: Fun for nerds
« Reply #508 on: July 04, 2023, 07:21:09 am »
Making Infrared Cooling Paint From Grocery Store Items (w/Novel CaCO₃ Microsphere Synthesis)
NightHawkInLight



 8)
 
The following users thanked this post: T3sl4co1l

Offline RoGeorgeTopic starter

  • Super Contributor
  • ***
  • Posts: 6462
  • Country: ro
Re: Fun for nerds
« Reply #509 on: July 08, 2023, 06:24:14 am »
A Round Disk Through a Smaller Square Hole (Bending Spacetime)
The Action Lab



Not spacetime bending but still funny, classic trick of taking advantage of another dimension.  ;D

Offline RoGeorgeTopic starter

  • Super Contributor
  • ***
  • Posts: 6462
  • Country: ro
Re: Fun for nerds
« Reply #510 on: July 10, 2023, 03:24:23 pm »
Understanding Oscilloscopes – XY Mode
Rohde Schwarz



Didn't thought about measuring the AM modulation factor like that.  ;D

Understanding Oscilloscopes – Lissajous Patterns
Rohde Schwarz


Offline RoGeorgeTopic starter

  • Super Contributor
  • ***
  • Posts: 6462
  • Country: ro
Re: Fun for nerds
« Reply #511 on: July 18, 2023, 03:45:50 am »
Avoid These Tiny Bits of Killer Fluff (If You Can)
Journey to the Microcosmos



 :scared:

Offline RoGeorgeTopic starter

  • Super Contributor
  • ***
  • Posts: 6462
  • Country: ro
Re: Fun for nerds
« Reply #512 on: July 19, 2023, 03:11:38 pm »
How To Make The Strongest Laser Light
The Action Lab



 :o

Offline jeffjmr

  • Regular Contributor
  • *
  • Posts: 144
  • Country: us
Re: Fun for nerds
« Reply #513 on: July 20, 2023, 03:34:49 am »
Series circuit - 6 LEDs - how does it work?
Henryk Gasperowicz



 ;D

Can someone explain how this works, or is it a magic trick (illusion)?
 

Offline RoGeorgeTopic starter

  • Super Contributor
  • ***
  • Posts: 6462
  • Country: ro
Re: Fun for nerds
« Reply #514 on: July 20, 2023, 05:40:24 am »
The video is not faked by special effects.  The trick is that inside the connector for the 9V battery, there is a small oscillator, and inside the LEDs and switches there are tiny tuned circuits not visible.  The battery connector, the LEDs and/or the switches were modified in advance.  Sometimes a simple diode instead of a tuned LC is enough.

There are a few other videos titled "Sollution" on his YouTube channel, where the entire schematic is shown, including the tiny SMD parts hidden inside batt connector and inside LEDs/switches.





« Last Edit: July 20, 2023, 05:42:10 am by RoGeorge »
 
The following users thanked this post: jeffjmr

Offline RoGeorgeTopic starter

  • Super Contributor
  • ***
  • Posts: 6462
  • Country: ro
Re: Fun for nerds
« Reply #515 on: July 21, 2023, 01:03:01 pm »
TSP #230 - A Real-Life Tricorder! Agilent Raman Resolve Through-Barrier Chemical Analyzer
The Signal Path



 :o

Offline RoGeorgeTopic starter

  • Super Contributor
  • ***
  • Posts: 6462
  • Country: ro
Re: Fun for nerds
« Reply #516 on: July 26, 2023, 07:29:24 am »
Uniform Plane Waves: A 3D Journey to the Simplest Electromagnetic Wave Propagation
TheSiGuy



 :-+

Offline RoGeorgeTopic starter

  • Super Contributor
  • ***
  • Posts: 6462
  • Country: ro
Re: Fun for nerds
« Reply #517 on: July 29, 2023, 07:05:11 am »
Has JWST shown the Universe is TWICE as old as we think?!
Dr. Becky



 :)

Offline RoGeorgeTopic starter

  • Super Contributor
  • ***
  • Posts: 6462
  • Country: ro
Re: Fun for nerds
« Reply #518 on: August 02, 2023, 06:00:16 pm »
The Microspheres Hiding in your Phone's Screen
Breaking Taps



 :-DMM

Offline RoGeorgeTopic starter

  • Super Contributor
  • ***
  • Posts: 6462
  • Country: ro
Re: Fun for nerds
« Reply #519 on: August 05, 2023, 06:57:14 am »
The 4 Maxwell Equations. Get the Deepest Intuition!
Universaldenker



 :-+

Offline NiHaoMike

  • Super Contributor
  • ***
  • Posts: 9154
  • Country: us
  • "Don't turn it on - Take it apart!"
    • Facebook Page
Re: Fun for nerds
« Reply #520 on: August 10, 2023, 11:14:29 pm »
Cryptocurrency has taught me to love math and at the same time be baffled by it.

Cryptocurrency lesson 0: Altcoins and Bitcoin are not the same thing.
 
The following users thanked this post: T3sl4co1l, RoGeorge

Offline RoGeorgeTopic starter

  • Super Contributor
  • ***
  • Posts: 6462
  • Country: ro
Re: Fun for nerds
« Reply #521 on: August 11, 2023, 04:21:28 pm »
The Most Reflective Mirror In The World
The Action Lab



 8)

Offline BrianHG

  • Super Contributor
  • ***
  • Posts: 7856
  • Country: ca
Re: Fun for nerds
« Reply #522 on: August 12, 2023, 03:31:57 am »
I guess the original Tesla was not truly responsible for high voltage AC transmission and transformers.
His name was only mainly pushed by Westinghouse as the all-in-one AC power god he was credited for which later in life he himself began to believe when interviewed.


 

Offline RoGeorgeTopic starter

  • Super Contributor
  • ***
  • Posts: 6462
  • Country: ro
« Last Edit: August 12, 2023, 06:56:08 am by RoGeorge »
 

Offline BU508A

  • Super Contributor
  • ***
  • Posts: 4531
  • Country: de
  • Per aspera ad astra
Re: Fun for nerds
« Reply #524 on: August 13, 2023, 05:54:54 pm »
From The Institute of Art and Ideas:
"Can we understand the universe? | Sheldrake & Hossenfelder go head to head on dark matter IN FULL"



Keep an eye on Sabine's bullshit-o-meter.  :-DD
“Chaos is found in greatest abundance wherever order is being sought. It always defeats order, because it is better organized.”            - Terry Pratchett -
 


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf