/sci/ - Science & Math

I'm tired as fuck but I think its 2. I am Probably retarded though.

2 ez

2
not hard

1, so ez

>>6957300
noob

>>6957302
Yes, new to gears

>>6957287
I can tell it's 2 by tracing the rotations with my eyes, but what is a better method to figure these out?

>>6957287

>>6957309
Touching gears switch rotation
Parallel strings keep rotation
Crossed strings switch roation

Then it's just a matter of counting up and down.

>>6957306
No excuse, I never did these kinda questions before and had it good first time.

ez

>>6957287
2

ASVAB flashbacks, thanks.

>>6957317
Math with rules, not intuition
>inb4 common core

>>6957317
much gratification

>>6957339
Please elaborate.

If you want make it more mathy think of rotations as spins {1,2} with modular arithmetic (1+1=2, 1+2=1, 2+1=1, 2+2=2) with the 'transactions'

Adjacant gear: +1
Parallel string: +2
Crossed string: +1

But that just complicates it imho.

>>6957344
I was pointing out that establishing simple rules for things that you may understand, doesn't always do a great job teaching other people to understand them, and encourages memorization of said rules (not actual learning). Hence the common core joke.

Wasn't asking for a math solution - although that's nice that you came up with one.

>>6957287
>>6957294
>>6957298
>>6957309
>>6957326
it's 1 noobs.

>>6957372
try harder

Last gear turns counter-clockwise, I don't know what the numbers mean. 2?

>>6957369
>I was pointing out that establishing simple rules for things that you may understand, doesn't always do a great job teaching other people to understand them, and encourages memorization of said rules (not actual learning). Hence the common core joke.

I agree, but then again the guy did ask for a better method. I guess the thing to take away from here is that you can abstract a complicated mechanical system into something that only has two states and very simple relations between its own components.

>>6957378

>>6957325
nice way of doing it, anon

>>6957344
Ayyy, that was my method of solving the puzzle.

>>6957287
If there's an "odd" number of gears in a cluster, the original direction is maintained.

If it's even, the direction is reversed

Is this what engineers consider hard?

>>6957411

I'll show you hard m8 ;)

>>6957344
Clever way of solving it, though. Would be useful in larger systems where tracing the gears would be tedious.

Try this one.

>>6957378
It's asking for the number that is safe from the pencil

>>6957369
There's no intuition behind mathematical rules.
Memorizing mathematical rules is important for doing mathematics. This isn't the 1700s where things weren't rigorous and we had to rely on 'intuition' to prove or do things.

>>6957557

Why do our brains perceive it as moving?

>>6957858
I would like to know this too.

>>6957858
Because you're fucking dumb

>>6957858
rods and cones

its 1

>>6957557
>.png

Not moving

>>6957287
50 bucks on steam to anyone who thinks its 1 and is right
also >>6957483

>>6957858
because your brain moved, but due to relativity, you perceived the picture as moving

>>6957858
Study has shown that they only appear to move to people with IQ less than 120.

>>6957858
Your brain uses certain visual cues to determine whether or not something is "moving." The image exploits this by using a pattern that creates similar visual cues to trick your brain into thinking its moving.

Thas last gear spins a couple of times crossing both 1 and 2. Since bigger gears spin small gears in more rotations.

>>6957325

Literally the way I was moving my finger across the screen (Except I followed the drive chains too)

>>6957557
>Try this one.
2

I wish OP was dubs

>>6957858
No idea but I know if you were to stare at this for 10 minutes it would fuck up your eyesight for 3 months