Author Topic: Fun for nerds  (Read 29245 times)

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Offline RoGeorge

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Re: Fun for nerds
« Reply #200 on: March 12, 2021, 04:57:10 pm »
Bending spacetime - with woodturning!



Wow, cool!  I didn't realize before that stretching a plane of 2D squares in a 3rd dimension would be the same as cutting a hole in an array of non-stretched volume of cubes.   :o

Offline BU508A

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Re: Fun for nerds
« Reply #201 on: March 12, 2021, 05:17:09 pm »
This guy, Olivier Gomis, is really amazing! I can recommend the other videos of his channel as well.
And I do really like his sense of humour.  :-DD
“Chaos is found in greatest abundance wherever order is being sought. It always defeats order, because it is better organized.”            - Terry Pratchett -
 

Offline RoGeorge

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Re: Fun for nerds
« Reply #202 on: March 13, 2021, 06:30:02 pm »


 :o

Offline RoGeorge

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Re: Fun for nerds
« Reply #203 on: March 14, 2021, 09:24:17 am »


 ^-^

Offline RoGeorge

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Re: Fun for nerds
« Reply #204 on: March 15, 2021, 10:08:23 am »


 :o

Offline RoGeorge

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Re: Fun for nerds
« Reply #205 on: March 17, 2021, 09:03:56 am »
Quote
The Surface of Venus from Venera 13
Image Credit: Soviet Planetary Exploration Program, Venera 13;
Processing & Copyright: Donald Mitchell & Michael Carroll (used with permission)

Explanation: If you could stand on Venus -- what would you see? Pictured is the view from Venera 13, a robotic Soviet lander which parachuted and air-braked down through the thick Venusian atmosphere in March of 1982. The desolate landscape it saw included flat rocks, vast empty terrain, and a featureless sky above Phoebe Regio near Venus' equator. On the lower left is the spacecraft's penetrometer used to make scientific measurements, while the light piece on the right is part of an ejected lens-cap. Enduring temperatures near 450 degrees Celsius and pressures 75 times that on Earth, the hardened Venera spacecraft lasted only about two hours. Although data from Venera 13 was beamed across the inner Solar System almost 40 years ago, digital processing and merging of Venera's unusual images continues even today. Recent analyses of infrared measurements taken by ESA's orbiting Venus Express spacecraft indicate that active volcanoes may currently exist on Venus.
Source:
https://apod.nasa.gov/apod/ap210317.html



 :o

Offline RoGeorge

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Re: Fun for nerds
« Reply #206 on: March 20, 2021, 12:43:20 pm »
How Amateur Radio Fans Decoded SpaceX's Telemetry & Engineering Video



"Is ham radio dead?"   ;D

Offline themadhippy

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Re: Fun for nerds
« Reply #207 on: March 25, 2021, 01:03:34 pm »
The new uk £50 note looks like it will entertain us for a few hours
https://www.gchq.gov.uk/information/turing-challenge
 

Online T3sl4co1l

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Re: Fun for nerds
« Reply #208 on: March 29, 2021, 10:16:23 pm »
A bit of multivariate calculus to start your day :)

Seven Transistor Labs, LLC
Electronic design, from concept to prototype.
Bringing a project to life?  Send me a message!
 
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Offline RoGeorge

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Re: Fun for nerds
« Reply #209 on: April 01, 2021, 08:50:07 am »

Offline BU508A

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Re: Fun for nerds
« Reply #210 on: April 10, 2021, 08:36:43 am »
Logarithms explained in Bob-Ross-style.  :-+  :-DD

“Chaos is found in greatest abundance wherever order is being sought. It always defeats order, because it is better organized.”            - Terry Pratchett -
 

Offline RoGeorge

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Re: Fun for nerds
« Reply #211 on: April 16, 2021, 04:18:04 pm »


Inflatable helical antenna.  Checked.   8)

Offline RoGeorge

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Re: Fun for nerds
« Reply #212 on: April 18, 2021, 07:57:29 pm »
What's all this Muon g-2 experiment, anyhow?   ???



Offline RoGeorge

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Re: Fun for nerds
« Reply #213 on: April 21, 2021, 09:22:14 pm »
"The Wavelet Tutorial" by Robi Polikar   :-+



Best introductory material so far, for building an intuition regarding Fourier Transform and Wavelet Transform.

http://cseweb.ucsd.edu/~baden/Doc/wavelets/polikar_wavelets.pdf  1st Edition
https://web.iitd.ac.in/~sumeet/WaveletTutorial.pdf  2nd Edition
http://users.rowan.edu/~polikar/WTtutorial.html  Webpage (the current website doesn't render the formulas, PDF versions recommended)
« Last Edit: April 21, 2021, 09:26:36 pm by RoGeorge »
 

Offline RoGeorge

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Re: Fun for nerds
« Reply #214 on: April 23, 2021, 05:45:07 am »
For all the intergalactic travelers, this is Earth, the night club planet w dancing lights.   8)


Offline BU508A

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Re: Fun for nerds
« Reply #215 on: April 24, 2021, 11:11:35 am »
How to build a water computer?

Steve Mould has an answer:

“Chaos is found in greatest abundance wherever order is being sought. It always defeats order, because it is better organized.”            - Terry Pratchett -
 

Offline RoGeorge

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Re: Fun for nerds
« Reply #216 on: April 27, 2021, 08:38:21 am »


 ;D

Offline RoGeorge

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Re: Fun for nerds
« Reply #217 on: May 01, 2021, 02:12:50 am »


 :o

Offline RoGeorge

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Re: Fun for nerds
« Reply #218 on: May 04, 2021, 07:06:57 am »
Source:  https://apod.nasa.gov/apod/ap210504.html


Tune to The Diamond City Radio while looking at this^:   I Don't Want to Set the World on Fire - The Ink Spots   8)

 
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