/sci/ - Science & Math

>>11222217

OMG!! HEADPHONES HAVE MAGNETS!!

Seriously guys! Magnets can bring people closer together, but what happens when they flip the magnets around! It forces people apart! People will have a stronger faith in god and be more bigoted to immigrants! You could start WW3 with these magnets

Any programmers around? I wanted to bounce this idea off someone to see if I'm overlooking anything. Measuring sequential drive read/write speeds. I'm thinking of reserving a large amount of RAM (gigs) for this. For writing, start a timer (QueryPerformanceCounter), write from RAM to the disk, end the counter, get the diff to see how many seconds elapsed. Read speeds read from file to RAM, measuring the same way. Turn off file buffering for file IO (CreateFile etc). This would all been done in physical RAM, not hits to the page file.

Seem like a reasonable way to measure drive speeds? Anything I am missing? Caveats, suggestiongs?

No such thing as free energy, if you understood physics you'd know that "no free energy" isn't grandma's advice, but a real fact.

However, you can try to absorb/convert energy. But not with magnets really.

Pic related.

Obligatory

http://lmgtfy.com/?q=How+magnets+work

>>4472052
>>4472052
>>4472052
>>4472052
This.
>>4472057
And this.

What observation really means in this case is the act of measuring, or probing of the experimental particle, which necessarily entails interaction with another particle. Before the interaction, the particle, normally (and erroneously) thought of as a hard sphere, spreads its potential through technically all of space, but mostly locally and in some sort of wave form determined by the square of the wavefunction. The interaction of the particle with another causes an abrupt change in the wavefunction, thought by most to be instantaneous and absolutely quantized. This view was argued against by Schrodinger himself, who thought that the event of wavefunction collapse was actually a state in which the particle exists in linear superposition. In other words, when "observation" occurs, the experimental particle interacts with a probe particle and changes its wavefunction. It's too bad that it's often explained so poorly.

>>4208121
Do you have the ability to sense the magnetic field of the earth with your senses?

No, you don't.

Ya know what you can sense though? Electromagnetic waves, of a very narrow range of frequencies. And how do you discern between these frequencies? Color. And how do you know that the color you feel and perceive as red isn't what someone else calls green? You fucking don't.

Birds perceive magnetic fields in ways we can't understand from a subjective point of view. Maybe they see blue in the direction of the north pole, but every once in a while one bird will see blue in the direction of the south pole!

pic related, it's you, only you're more pretentious.

>>3612609
welcome to 4chan.

semi-monthly magnet thread