The Sanctuary

Science => Mad Scientists => Topic started by: fanglekai on November 08, 2014, 04:17:02 am

Title: The Official Physics and Engineering thread
Post by: fanglekai on November 08, 2014, 04:17:02 am
fuck arnox
Title: Re: The Official Physics and Engineering thread
Post by: Lanny on November 08, 2014, 04:42:24 am
So you know those little wheels of cheese that come with that red wax on them that you have to peel off? I'm currently using that stuff to stick vinyl records to my wall. I'm using one wheel's worth per record but some are two plates. It's working for the moment but I don't know how long it'll last. Engineering fags, tell me how to figure out how long these things will stick to my wall.
Title: Re: The Official Physics and Engineering thread
Post by: fanglekai on November 08, 2014, 05:00:18 am
Measure the weight. Test how long it stays up. That should give you a rough answer. LOL
Title: Re: The Official Physics and Engineering thread
Post by: RisiR on November 08, 2014, 05:04:45 am
How long are the vinyls sticking to the walls so far?
Title: Re: The Official Physics and Engineering thread
Post by: Lanny on November 08, 2014, 05:09:10 am
It's been working for like about a week so far
Title: Re: The Official Physics and Engineering thread
Post by: RisiR on November 08, 2014, 05:18:04 am
The laws of cheese ball wax physics say, two more days until the first one will fall.

I guesstimated the relative humidity by the pictures I've seen to be ~75% with an upward trend. That means it could theoretically hold up to even 3 days or even longer. Yep.
Title: Re: The Official Physics and Engineering thread
Post by: fanglekai on November 08, 2014, 05:19:29 am
Without knowing the adhesive and its properties the only way to get the answer is through experimentation. See how long it holds up. Repeat a few times. That'll give an average.
Title: Re: The Official Physics and Engineering thread
Post by: starvingniglet on November 08, 2014, 05:19:54 am
The laws of cheese ball wax physics say, two more days until the first one will fall.

I guesstimated the relative humidity by the pictures I've seen to be ~75% with an upward trend. That means it could theoretically hold up to even 3 days or even longer. Yep.

so what you are telling him, basically, is that this will work better if he spits on it?
Title: Re: The Official Physics and Engineering thread
Post by: RisiR on November 08, 2014, 05:23:03 am
Or if he sweats a lot like a neckbeard. He doesn't want the wax to dry about because PHYSICS.

I'll try to figure this shit out but it's already tomorrow and I have to catch some sleep.
Title: Re: The Official Physics and Engineering thread
Post by: starvingniglet on November 08, 2014, 05:25:34 am
Or if he sweats a lot like a neckbeard. He doesn't want the wax to dry about because PHYSICS.

I'll try to figure this shit out but it's already tomorrow and I have to catch some sleep.

If he spits on it, it will probably not hurt as bad....and after a few minutes you will probably start to get into it
Title: Re: The Official Physics and Engineering thread
Post by: RisiR on November 08, 2014, 05:29:43 am
So I see you're using the emulate Infinityshock tactic we have previously discussed.

Gay.
Title: Re: The Official Physics and Engineering thread
Post by: starvingniglet on November 08, 2014, 05:37:49 am
Gay.

so you get the joke, I see
Title: Re: The Official Physics and Engineering thread
Post by: Enter on November 08, 2014, 05:41:48 am
physics? why do they call it physics? there's nothing physical about it. they're just a bunch of nerds who study it LOL!

engineering? do these nerds even know what a car engine is? i bet they don't even have a car LOL!

fucking NERDS. go read your fucking books. FAGGOT NERDS. GEEKS.
Title: Re: The Official Physics and Engineering thread
Post by: stdio.h on November 08, 2014, 05:47:34 am
A man with a height of 1.8m stands in a room masturbating. A 12 year old girl with a height of 1.5m is kneeling 1.0m away with her mouth open. Upon orgasm, semen is ejected at a velocity of 10.0m/s. Assuming g = 9.81m/s2, ρ = 1.2kg/m3, and cd = 2.0, at what angle must the man aim his penis to deposit his semen in the girl's mouth?
Title: Re: The Official Physics and Engineering thread
Post by: dopeman420 on November 08, 2014, 06:19:28 am
A man with a height of 1.8m stands in a room masturbating. A 12 year old girl with a height of 1.5m is kneeling 1.0m away with her mouth open. Upon orgasm, semen is ejected at a velocity of 10.0m/s. Assuming g = 9.81m/s2, ρ = 1.2kg/m3, and cd = 2.0, at what angle must the man aim his penis to deposit his semen in the girl's mouth?
45 degrees
Title: Re: The Official Physics and Engineering thread
Post by: Lanny on November 08, 2014, 06:44:30 am
A man with a height of 1.8m stands in a room masturbating. A 12 year old girl with a height of 1.5m is kneeling 1.0m away with her mouth open. Upon orgasm, semen is ejected at a velocity of 10.0m/s. Assuming g = 9.81m/s2, ρ = 1.2kg/m3, and cd = 2.0, at what angle must the man aim his penis to deposit his semen in the girl's mouth?

Need more info. Is the "1 meter away" measurement tip of penis to front of girl? If not we need to know the penis length.  Also what's the offset from the the man's head to his penis and from the girl's head to her mouth? Leg and head length is not uniform nor proportional in humans.
Title: Re: The Official Physics and Engineering thread
Post by: fanglekai on November 09, 2014, 04:50:03 am
yep lanny called it. we need those dimensions.

Fd=Cd*1/2*p*v^2*S
We need the cross sectional area S or we could use a more simplified formula.

Simple formulas
x=Vox*t
y=Voy*t-1/2*g*t^2
Title: Re: The Official Physics and Engineering thread
Post by: Σ on November 09, 2014, 07:19:13 am
physics? why do they call it physics? there's nothing physical about it. they're just a bunch of nerds who study it LOL!

engineering? do these nerds even know what a car engine is? i bet they don't even have a car LOL!

fucking NERDS. go read your fucking books. FAGGOT NERDS. GEEKS.

Well you see there is quite a lot physical about physics. Its mechanics that you are thinking of.
Title: Re: The Official Physics and Engineering thread
Post by: BallsDeep69 on November 09, 2014, 09:55:15 am
This thread has been surprisingly... Sensible.
Title: Re: The Official Physics and Engineering thread
Post by: Enter on November 09, 2014, 10:33:15 am
physics? why do they call it physics? there's nothing physical about it. they're just a bunch of nerds who study it LOL!

engineering? do these nerds even know what a car engine is? i bet they don't even have a car LOL!

fucking NERDS. go read your fucking books. FAGGOT NERDS. GEEKS.

Well you see there is quite a lot physical about physics. Its mechanics that you are thinking of.

...all mods confirmed for autism
Title: Re: The Official Physics and Engineering thread
Post by: splooge gook on November 09, 2014, 10:43:23 am
Imagine there's a projectile, x, being fired straight at a certain speed. If there's a second projectile, y, that intersects directly through projectile x while it is still in motion, how would you calculate the trajectories of x1 and x2, assuming y continued through the object without any change in positioning. X1 will veer downwards and to the left, X2 will  veer downwards and to the right. Filling in for any missing variables I may not have though of, how would you calculate the trajectories of X1 and X2? I have no fucking clue but probably angle and velocity being affected by gravity. Halp