led colour efficiency
in Physics

White vs blue

A blue LED will output more energy than a white one, in other words you save energy. This is one of the reasons why in some products like head lamps you can find white LED with a blue tint. At the same time, eye sight decreases in space lit up with blue light. I promise …

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c-programming-advice
in Programing

“A” is a new “P”

Amateurism is a new professionalism – in some cases it is better to work like an amateur. In programming, loops take more clock cycles than regular instructions. If possible, try to avoid them when working on critical applications. This goes especially for interrupts. If you have to loop a function only a few times just …

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Magnet
in Physics

Magnets

Don’t play with them. Are your magnets losing their super powers? If yes, it is probably because you are playing with them (we all do 🙂 ). We need to know that a magnet is made out of lots and lots of little magnets called electrons. When they stand (spin) in the same direction they …

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