Category: computer

Every single softeng lab in Greece be like

Heat sinks

If you have explored the interior of your CPU then you might have noticed that there are these horizontal metal plates (called fins) many a times with a fan on top of the central or graphic processors.

They are called heat sinks/heat exchangers and are used to dissipate the heat generated by the processor to the surrounding.


The reason why they work is that according to the Fourier’s law, the
heat dissipated is directly proportional to the cross sectional area.


And adding protrusions to the surface increases the net cross section area for exchanging the heat with the surrounding.

Cooking with a computer

In order to demonstrate the extent to which the processor would heat up, let’s remove the heat sink and place a piece of meat on it.


At such high temperatures where cooking a piece of meat becomes possible on a processor, you can be damn sure that the probability of the survival of a computer running without a heat sink is just  0. **

Have a great day!

Stegosaurus and its huge ‘fins’

** for all practical intents and purposes, not merely for testing


The size of things

Sometimes I feel like we don’t appreciate how much we have evolved in technology only in the past few decades.

Isaac Newton vs. Las Vegas: How Physicists Used Science To Beat The Odds At Roulette

“By 1961, Thorp and Shannon had built and tested the world’s first wearable computer: it was merely the size of a cigarette pack and able to fit into the bottom of a specially-designed shoe. Toe switches would activate the computer once the wheel and ball were set into motion, collecting timing data for both. Once the computer calculated the most likely result, it would transmit that value as musical tones to a tiny speaker lodged in an earpiece. The wires were camouflaged as much as possible.”

Did you know the world’s first wearable computer was built all the way back in the 1960s, was worn on your feet… and was used to help gamblers cheat at roulette? Physicists and mathematicians work with probability and predicting the behavior of a given system a lot, and when you combine that with the science of simple motion (as on a roulette wheel), the possibility of ‘beating the odds’ suddenly becomes real. Security measures that seem commonplace today in casinos, such as roulette wheels with no observable defects, a ban on computers and ‘table talk,’ and the inability to place late bets, all came about because of how scientist/gamblers have successfully beaten the house in the past.

From the 1940s up to the modern day, come hear the story of how simple physics helped defeat the casinos, and how the saga, for a few people, is still ongoing today!