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# /sci/ Science & Math

## Most viewed threads in this category

If you where to go in an elevator step on a scale and go down you would "weight less" Because of the normal force being reduced. Is this because since force is mass times acceleration and when you go down you accelerate downward therefor cancelling out the normal force? Also what if you stopped accelerating and went at a negative velocity (Downward) would the normal force already be cancelled out from before and not come back?Also what if you where to move faster than gravity (-9.81) would you experience a "negative normal force" or like complete cancellation of normal force and a new force pushing you upward? Am I at least close?
Nothing can travel faster than the speed of light? What about when i'm driving my car at 30 MPH and I put my headlights on? Wouldn't the light come out at the speed of light plus 30 MPH? THAT'S FASTER THAN LIGHT BITCH.
/sci/, how come I can't retain any information? Every time I study (which is hell already because I postpone and get distracted and shit) I forget the material learned within a few minutes. And retain maybe 10% after a day. Currently I'm in engineering school and I'm failing because I simply can't remember things long enough for the test. This applies to everything from mathematics( I can't grip concepts for shit) to downright simple shit like bussines. >inb4 not learning enough

### Neurophysiology

Hey sci How does an action potential propogate along a neurone? If we assume that sodium ions diffuse passively along the axon, it would cause hyperpolarisation further down the axon (according to the Goldman-Hodgkin-Katz equation and cable theory). From this you could conclude that the initial assumption that sodium diffuses along the axon is wrong. Does anyone know the actual mechanism?
If I shine a flashlight into a handheld mirror, obviously the light bouncing off the mirror is moving at the speed of light. Now if I give the mirror a quick snap of the wrist, I've just increased its speed beyond that of light to Light + the Speed of Wrist Snap. And I didn't achieve infinite mass or anything. Conclusion: faster than light travel is possible. QED

### Bone healing

Would something as this be treatable? Will the doctors have to involve surgery to align all the bones into correct position after which they fix it, or is it done in some other manner?
Want to test your skills /sci/ ? http://thestewards1033.org
can anything be done about heat death?
Well?
Whats the objectively best way to study? Just got into medschool and looking for the right way to learn all those huge books.

### How to make biology interesting

Im studying about organisms, how can i change my mind set about biology?
Was /sci/ privately educated? http://strawpoll.me/5925431
/v/irgin here, this may be strange and I'm not even sure it's topical for the board but I have a question. I have a cousin who has just graduated from college and has become a physicist. He's fucking awesome so I want to get him a Christmas gift but I need opinions on what a physicist would like. Any ideas?
What are the actual philosophical implications of quantum theory?

### Balloon Assisted Rocket (BAR)

Dear /sci/, Is it possible to launch a rocket from a balloon? The launch components will get very cold, is there a way to keep the rocket in good condition for ignition and blastoff? https://www.youtube.com/watch?v=fEJGI3NjJso

### How do human weight scales work?

Im genienely intested about, how human weigh scales work. Please share any information relevant to the subject
>0!=1 >0.9999....=1 >1+2+3+4+5....=-1/12 Why are mathematicians so full of shit? Why do we continue funding and respecting this sham of a field?
ITT: boner inducing sights

### Med school IQ

So the average med student has 124IQ What is the average IQ of a harvard Med student

### Maths Pet Peeves

>"The authors showed in previous work that..." >no citation where they showed it >people who use $2^A$ instead of $\mathcal{P}(A)$ >people who only use single letters to name functions and sets

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