🎓 Doc Freemo 🇳🇱 @freemo@qoto.org

I have a piece of amber a few million years old with about two dozen insects fossilized inside. I'll post macro shots of the various insects in the replies, as well as additional information.

#fossil #fossils #amber #science

An analysis of my 27' vertical antenna (6BTV). The green line shows the antenna's resonance. The peaks are the frequencies the antenna is best suited to transmit at. 0dB on the image is roughly a SWR of 1; -20dB is approx infinite SWR.

#hamradio #AmateurRadio #electronics #radio

A close up of the SWR meter's analog board.

#Electronics #ElectricalEngineering #RF #HamRadio

Another picture from the #MUD style #mmorpg I've been writing called AetherMUD. This is what the fighting sequence looks like.

https://github.com/Syncleus/AetherMUD

#gamedev #GameDesign #GameDeveloper #rpg #opensource #Java #mud #programming #mmorpg #games

Math latex rendering now enabled on the instance, yay!

\(\frac{d}{dx} f(u)^n\)

This is a picture of the first moments of a nuclear explosion taken in 1952. The blast radius at this moment is less than 20 meters wide.

There are so many extraordinary things about this photo. First off the fact that they had a camera in the 1950's capable of such insanely high speed frame rates (they created a movie from this) that it was capable of 1,000,000 frames per second. In many ways that is more impressive than the nuclear bomb itself.

Second the fact that you can see, in real time, a nuclear explosion as it happens. Those spikes at the bottom are called the "rope trick effect" which is caused by the support cables inside or holding up the bomb. The light radiation is so intense it vaporizes anything nearby causing things to explode just from the intensity of the light itself (before radiation has any effect at all). So those spikes are literally just the support cables exploding in the extraordinarily bright light from the bomb.

A beautiful elk I took a picture of at Yellowstone a few years back.

#Elk #Yellowstone #photography #winter #nature

A few years back I was caught in the middle of a stampede of Buffalo. Instead of being smart and running I stood my ground and took pictures as they charged past me. Got this amazing picture from the experience.

#Bison #bisons #Buffalo #Yellowstone #photography #winter #nature

A sea turtle I saw while SCUBA diving off the coast of St. Croix, USVI.

#scuba #seaturtles #ocean #diving #turtles #scubadiving #USVI

A picture I took of Jupiter a few years back. One of the first Astrophotography pictures I ever tried.

#Jupiter #astrophotography #astronomy #photography #nature

An Astrophotography picture I took of the moon. Not the hardest picture to take, though it did require some expensive equipment.

#moon #astrophotography #astronomy #photography #nature #art

One of my most popular pictures. It is a picture of the Benjamin Franklin Bridge in Philadelphia. It was compiled from 5 seperate pictures at different exposure for HDR.

#Philadelphia #photography #hdr #Bridge #Bridges #hdrphotography #art

A quick build of a cheap and easy Directional coupler using the coupled transmission line approach. You cant see it in the images but there are two 50 ohm terminating resistors on the end of each coupling.

#hamradio #Electronics #Radio #AmateurRadio #RF #ham

An Advanced SWR meter I built about a month ago. It calculates phase shift so can compute a complex impedance and complex SWR, something most meters cant do. Schematics included.

https://github.com/Syncleus/roes
https://github.com/Syncleus/roes-hardware

#hamradio #AmateurRadio #electronics #Radio #ham

Been coding up a MUD in my free time for fun. This is a screen shot of the local map I coded up that shows rooms, exits, enemies, and NPCs; all done using ASCII characters. Written in Java.

https://github.com/Syncleus/AetherMUD

#Java #gamedev #mud #Programming #mmorpg #rpg #games

Here is a book I began working on some time ago to help explain how to do Circuit Analysis in the frequency domain.

http://jeffreyfreeman.me/frequency-domain-circuit-analysis-tutorial/

#Electronics #Mathematics #Math #CircuitAnalysis #Electrical #ElectricalEngineering #CircuitDesign #hamradio #AmateurRadio

A n-body simulation I wrote using Aparapi. The red dots are high mass and the blue dots low mass. The system starts ordered but evolves into a beautiful natural looking orbit.

https://youtu.be/Qn8dtKBK0oA

#GPGPU #NBody #Mathematics #GPU #Physics #Simulation

My favorite computer used for all my Deep Learning R&D. When idle it usually defaults to mining cryptocurrency to offset its build cost of about $10,000.

#DeepLearning #GPGPU #GPU #blockchain #cryptocurrency #Crypto #MachineLearning #Ethereum #ethereummining #AI #Mining