Author Topic: Fun for nerds  (Read 128428 times)

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Offline Dan123456

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Re: Fun for nerds
« Reply #575 on: December 27, 2023, 03:06:28 am »
Just had this recommended to me and thought it was pretty cool  :)

The theory and maths of Quantum computing is waaaaay above my head but I find the subject super interesting none the less and she does a really good job explaining it in layman’s terms  :)

 

Offline T3sl4co1l

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Re: Fun for nerds
« Reply #576 on: December 29, 2023, 07:42:14 pm »
Seven Transistor Labs, LLC
Electronic design, from concept to prototype.
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Offline Andy Chee

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Re: Fun for nerds
« Reply #577 on: January 03, 2024, 08:23:33 am »
In the spirit of giant 555 timer, this guy makes a giant LED:



Need to combine the two together and make a giant LED flasher!
 

Offline RoGeorgeTopic starter

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Re: Fun for nerds
« Reply #578 on: January 14, 2024, 03:55:48 pm »
Light pressure, The mechanical effect of photons
xofunkox-scientific experiments



Not a Crookes, not a crook.  :-DMM

Offline RoGeorgeTopic starter

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Re: Fun for nerds
« Reply #579 on: January 19, 2024, 11:10:40 am »
Humans vs Superhumans | When Monsters Were Real and We Almost Went Extinct
The Why Files



 :scared:

Offline RoGeorgeTopic starter

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Re: Fun for nerds
« Reply #580 on: January 23, 2024, 12:23:55 pm »
UNSW Quantum Computer Lab Visit - Part 2
EEVdiscover



 8)

Inside a Quantum Computer! with Andrea Morello (Part 1 of 2)
EEVdiscover
https://youtu.be/k_QeSOIDiEM

Offline Andy Chee

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Re: Fun for nerds
« Reply #581 on: January 28, 2024, 03:51:35 am »
Steam engine phone charger

 

Offline RoGeorgeTopic starter

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Re: Fun for nerds
« Reply #582 on: January 31, 2024, 10:02:41 am »
I built my own 16-Bit CPU in Excel
Inkbox



 :-+

Offline BrianHG

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Re: Fun for nerds
« Reply #583 on: January 31, 2024, 11:01:03 am »
Light pressure, The mechanical effect of photons
xofunkox-scientific experiments



Not a Crookes, not a crook.  :-DMM
The final laser illumination seems to push that foil way too fast.  All you need are a few molecules of air to generate the helping Crooke's effect you get in low air pressure environments.  That setup is just too insensitive and doesn't have any true measurement or math to back up what you see as being true sole light radiation pressure.  (I guess unless he is using a 100-500 watt laser, that foil is just moving way too fast..)

     Now for the real-Mcoy, a video from Cody's Lab.  He created a sensitive enough balance scale, calculated the power of the source laser light attaining the predicted force of the light, created a calibration weight (10x that of the light pressure on a mirror surface) to calibrate his balance scale, then measured the light's force VS the calibration weight and found a close enough match that you know what he measured was real:


« Last Edit: January 31, 2024, 11:23:59 am by BrianHG »
 
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Offline RoGeorgeTopic starter

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Re: Fun for nerds
« Reply #584 on: January 31, 2024, 12:28:07 pm »
Clever experiment setup from Cody.  :-+
Now I know how to make a super sensitive scale with nothing but passive mechanical elements and a magnet, thanks.

In the Cody's experiment, I would have also aimed at the Al foil through the glass bottle while missing the reflecting/absorbing target, and also made yet another measurement with the mirror tilted 45 degree, in order to check if the point where the laser first hits the glass is heaving any influence or not.

Don't know about the xofunkox's experiment, but he is certainly aware about the possible influence of air molecules.  All his videos are without any further explanations and very short, with only 1-2 minutes filming various physics experiments and apparatus, so no surprise that there is no effort to convince others that the experiment was conducted properly.

About the foil acceleration seen in xofunkox's experiment, seems plausible when compared with Cody's experiment, since Cody's instrument was heaving a huge mass to move, when compared with just a thin foil under a high vacuum bell.
« Last Edit: January 31, 2024, 12:43:22 pm by RoGeorge »
 

Offline Andy Chee

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Re: Fun for nerds
« Reply #585 on: February 11, 2024, 11:24:33 am »
You've probably heard of SWR standing wave ratio on transmission lines, but what about explosions in tunnels?

 
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Offline RoGeorgeTopic starter

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Re: Fun for nerds
« Reply #586 on: February 15, 2024, 09:01:02 am »
The Science of SpaceX Starship’s Thermal Tiles
Breaking Taps



 8)
 
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Online NiHaoMike

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Re: Fun for nerds
« Reply #587 on: February 17, 2024, 12:43:37 am »
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.
 

Offline BrianHG

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Re: Fun for nerds
« Reply #588 on: February 20, 2024, 09:41:25 pm »
 :scared: And now for something completely insane...  :scared:


 
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Offline BrianHG

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Re: Fun for nerds
« Reply #589 on: February 21, 2024, 07:13:20 am »
 

Offline BrianHG

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Re: Fun for nerds
« Reply #590 on: February 21, 2024, 07:25:46 am »
 

Offline RoGeorgeTopic starter

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Re: Fun for nerds
« Reply #591 on: February 25, 2024, 11:02:56 pm »
WORLD OF TOMORROW by DON HERTZFELDT
don hertzfeldt



 :)
 
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Offline Andy Chee

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Re: Fun for nerds
« Reply #592 on: February 27, 2024, 10:13:50 pm »
FPV quadcopter at 250km/h follows a F1 car around Silverstone.


 
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Offline BrianHG

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Re: Fun for nerds
« Reply #593 on: March 02, 2024, 02:25:30 am »
 

Offline RoGeorgeTopic starter

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Re: Fun for nerds
« Reply #594 on: March 02, 2024, 06:33:19 am »
Building a wall-hanging sound sculpture | shell-tethered vesper
Eirik Brandal
https://eirikbrandal.com/



 ^-^
 
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Offline T3sl4co1l

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Re: Fun for nerds
« Reply #595 on: March 04, 2024, 01:45:38 am »
Seven Transistor Labs, LLC
Electronic design, from concept to prototype.
Bringing a project to life?  Send me a message!
 

Offline RoGeorgeTopic starter

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Re: Fun for nerds
« Reply #596 on: March 20, 2024, 10:03:11 pm »
Can a Little Oil Really Calm the Ocean?
The Action Lab


 ???

Offline BrianHG

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Re: Fun for nerds
« Reply #597 on: March 22, 2024, 01:35:53 pm »
WTF?  :scared: 
(Gearless right angle drive)




« Last Edit: March 22, 2024, 01:43:05 pm by BrianHG »
 


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