technology
Get flash to fully experience Pearltrees
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HOME PAGE OF MANOS ROUMELIOTIS
These simulations were written in C++ as a senior year project by Fivos Asimakopoulos (email: fivasim at gmail.com) These versions are preliminary ones, without much attention to the relative gear diameters or vertical positions.
Why on Earth would you want to strap one of these to your wrist?
Hublot painstakingly recreates a mysterious, 2,100-year-old clockwork relic - but why?
Main Antikythera mechanism fragment. The mechanism consists of a complex system of 32 wheels and plates with inscriptions relating to the signs of the zodiac and the months. Image: National Archaeological Museum, Athens, No. 15987.
Ancient Greek calculating device continues to reveal secrets
practical tech
How Much Data Is That? Note: The information shown below uses measures only associated with data.
How Much Data Is That?
learn morse code
You start at START and hear a DAH then move down and left to the T and then you hear a DIT so you move down and RIGHT to the N and then you hear another DIT so you move DOWN and RIGHT again and land on the D Listen to code tapes or computer practice code while tracing out this chart and you will find yourself writing down the letters in no time at all without the aid of the chart.
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DIY Electronics
Arduino - HomePage
Arduino is an open-source electronics prototyping platform based on flexible, easy-to-use hardware and software.
robotics and phys. design
Electronics Demonstrations
Electronics Demonstrations The following demonstrations use a java applet that simulates electronic circuits. Click on the " Resistors " example for a brief summary of how the applet works.Wiki
RepRap is humanity's first general-purpose self-replicating manufacturing machine .Transformers
In the photograph, note that the coil on the left has fewer coils than that at right (the insets show close-ups). The sketch and circuit show a step-up transformer. To make a step-down transformer, one only has to put the source on the right and the load on the left. ( Important safety note : for a real transformer, you could only 'plug it in backwards' only after verifying that the voltage rating were appropriate.)"Eye of Sauron" Rotating long breakout point 2007 This uses a motorized 6 foot aluminium tube connected to the top of the TC.
Tesla_coil_sparks
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