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#5307 - sushiwins
Reply 0
(02/09/2016) [-]
if anyone can help me im looking for a documentary that goes over how life began on earth. the only things i remember about it is there was a fish with a boxy head with huge ass scorpions, that later evolved into some kind of amphibian that was yellow and black, then it went into dinosaurs, and finally it had mammals. it was all CGI and i remember seeing it on the history channel or nat geo.
#5305 - mariopimpjr
Reply 0
(02/09/2016) [-]
anyway i can remove my toenails without pain? i dont know how to remove them a lot because 95% of it seems to be attached to the skin
#5304 - mariopimpjr
Reply 0
(02/08/2016) [-]
does the leap year keep up from having midnight during the day? because of the quart day every year
#5303 - smartythechicken
Reply 0
(02/08/2016) [-]
okay but what if you made plate armor our of some sort of bullet-proof graphene? it could be graphene on the outside and a layer of titanium on the inside for shock absorption
#5302 - smartythechicken
Reply 0
(02/08/2016) [-]
had an idea: what if ya made a small, comfortable exoskeleton that kept you warm, instead of like, making you strong?
so you would have a small exoskeleton under your clothes, and it would heat up the most important parts of your body, and this way you could wear shorts and a Tshirt while its winter
and if you brought it for like an outdoor party or something it could be stylish with LEDS or something
#5300 - zonetransferrer
Reply 0
(02/07/2016) [-]
there is a chemical, clean element, that makes you shit instantly when you sniff it, like you snif and in 0,01 sec u shit BUT I FORGOT WHICH ONE IT IS FUUUUUUUUUUUUUU
#5301 to #5300 - smartythechicken
Reply 0
(02/08/2016) [-]
i need to know what this chemical is
mention me when ya find out
#5294 - theplanetearth
Reply 0
(02/07/2016) [-]
Is it possible to ignite the entire earth's atmosphere? What's the smallest amount of effort that can be put in to ignite the entire earth's atmosphere?
#5297 to #5294 - smartythechicken
Reply 0
(02/07/2016) [-]
back when the nukes were first being developed and tested, there was doubt as to whether or not it would ignite the atmosphere.
i dont know sauce for this, but mabbe it helps?
#5292 - mariopimpjr
Reply 0
(02/06/2016) [-]
for the library of babel, what do the green and yellow highlights mean when you click Anglishize. and its said your life is already written down in it, how can i find my future in it
#5289 - askafj
Reply 0
(02/05/2016) [-]
if I put an unopened can of coca cola light in the freezer, will it explode?
#5298 to #5289 - smartythechicken
Reply 0
(02/07/2016) [-]
when a liquid turns to a solid, it usually shrinks, unless it's water, because then it expands.
so hypothetically, what COULD happen is:
1) nuffin, because the water doesnt freeze.
2) the can gets bigger from something inside expanding, maybe water?
3) the can cracks, but nuffin gets out because its frozen
4) BOOM
#5293 to #5289 - soundofwinter
Reply 0
(02/07/2016) [-]
just might, depends on how long it's in there and how cold it gets
#5286 - mikeypooh
Reply +1
(02/04/2016) [-]
is it true milk is bad for you? on Adam Ruins Everything, he says that milk doesnt help build strong bones and would give you a higher risk of bone fracture
#5299 to #5286 - smartythechicken
Reply 0
(02/07/2016) [-]
listen up, fuccboi
milk is good for the bones because calcium
also broccoli is good. broccoli has calcium
#5295 to #5286 - soundofwinter
Reply 0
(02/07/2016) [-]
Milk is so good for you holy shit you don't understand

The ability to drink milk isn't even 10,000 years old yet it spread so quickly. It's the most naturally selected for trait in the human genome. Drink more milk it's god tier food.
#5290 to #5286 - martialbrony
Reply 0
(02/05/2016) [-]
All I have to say based on this article is that you're better off having your cup unless you're lactose intolerant (and wanna avoid risking prostate cancer).

Milk couldn't increase your chance of fractures, that's Phosphorous acid, used in coke and sodas alike as a (English is not my native language, but I think this is correctly translated) "acidifier". It binds to the calcium in the body. But replace those with sodas that use Citric Acid, I think that one is safer? But then again everything is bad for you if you overdo it, rule of thumb: moderation.
#5287 to #5286 - whitechino ONLINE
Reply 0
(02/04/2016) [-]
I would like to know as well.
Milk is kinda bad since they add steroids and lie with an *astericks when they say they don't. When you have a cup of milk 12grams of sugar, with a glass of orange juice 22grams of sugar, with a cereal like Frosted flakes 10grams, and maybe a coffee since people don't know how to sleep or stay up It's not a good way for your Kidneys to start the day.
#5285 - supervillian
Reply +1
(02/03/2016) [-]
hey guys
my science teacher streams video games and posts them on youtube, they are mostly short but he is a really cool teacher and I was wondering if you would be nice and pop a sub for him or something. You don't have to but I would like to see his reaction in class if he gets a ton of subs ( he's a really cool guy and an awesome teacher )
www.youtube.com/channel/UCl9YiDhzBj_ORz9ibN4WD4Q
#5284 - mikeypooh
0
has deleted their comment [-]
#5283 - smartythechicken
Reply 0
(02/01/2016) [-]
had an idea a few weeks back
what if instead of having electricity run through a copper wire, you would have a powerful laser run through a cord of graphene? it would be more versatile and have less of an energy loss. the downsides would be that it would be real powerful, and if it was cut over the light would be incredible. anyway what do you think? i dont really care if you steal the idea, its all science. just dont patent it and be like that one douche that made aids medicine go up.
#5306 to #5283 - magicpotato
Reply +1
(02/09/2016) [-]
See: fiber optics
#5276 - vetis
Reply 0
(01/30/2016) [-]
A rocket is shot directly up, starting from rest with an acceleration of 29.4m/s^2. It runs out of fuel after 4 seconds and continues to coast upward.

I'm having trouble figuring out how to find the maximum height it reaches. I feel like it'd be two different formulas, one for the distance it reaches at the end of the first four seconds [I believe it's 235.2m], and then another for the coasting, but I don't know the formula for the second half.

Side note, the velocity before it hits the ground would be 9.8m/s since it's a freefall from the peak and only affected by gravity, correct?
#5280 to #5276 - smudgiemuffins
Reply +1
(01/31/2016) [-]
So there are two steps here, and you got the first one right. Before it runs out of fuel, it rises 235.2 meters. There are two ways to approach step 2. I'm going to use the one that a physics teacher is usually looking for you to employ here. It is worth nothing that this is a slightly less cumbersome calculation if you are comfortable with the concept of energy.

So, once our rocket is at 235.2 meters, how fast is it going? Well, it's initial velocity is
Δv=aΔt=(29.4 m/s²)(4 s)=117.16 m/s. Initial in this case meaning it's velocity initially at the beginning of our calculation where it ran out of fuel, not initial as in the point where it was at rest.

There is a special equation of motion we can use here, which is: v² = v₀² + 2aΔs where s is distance traveled. This can be derived algebraically using
Δv=aΔt and Δs=(1/2)aΔt² + vΔt

So, v is final velocity, which is zero because we know gravity will stop the rocket eventually. We know v₀ is 117.16 m/s, and we know a is just g, which is -9.8 m/s². And that negative is very important given how I've chosen my frame of reference here. Want we want to know is Δs. So lets rearrange.

(v² - v₀²)/(2a) = Δs
(0² - 117.16²)/(2*-9.8) = Δs
Δs = 700.330 m

But remember, Δs is *change* in distance. We were initially at 235.2 meters. So the final distance traveled is 700.330 + 235.2 = 935.53 m.

As for the final velocity before it hits the ground, not quite. Now that we know it is at rest at the top of it's 935.53 m climb, we can calculate how long it takes to fall using the same equation.

v² = v₀² + 2aΔs
v² = 0² + 2(-9.8)(-935.53) note: Δs is negative because it is falling
v² = 18336.388
v = 135.412 m/s when it hits the ground
#5281 to #5280 - vetis
Reply 0
(01/31/2016) [-]
Thanks for the detailed description! This will be incredibly useful to understand when it comes time for my test.
#5275 - thumbfortrump
Reply +1
(01/29/2016) [-]
I just thought of in my opinion a fun challenge to all those who wish to generally just know more.
From today, and until this same day next year, you will each day have to go to Wikipedia and press "random article", and read that article.
Today I learned Hazel Bishop, who apparently invented the first long-lasting lipstick en.wikipedia.org/wiki/Hazel_Bishop .
What do you guys think? Wanna join me in this challenge?
#5288 to #5275 - whitechino ONLINE
Reply 0
(02/04/2016) [-]
wiki roulette?
#5278 to #5275 - anon
Reply 0
(01/30/2016) [-]
okay nigga will we meet up in this biaatch to share knawledge?
#5282 to #5278 - thumbfortrump
Reply 0
(01/31/2016) [-]
fuk yea big boi
#5274 - scowler
Reply 0
(01/29/2016) [-]
Does Lysol still contain Phenol?
#5273 - brcstar
Reply +4
(01/29/2016) [-]
help me science board

why do my Spaghetti O's keep making lightning
#5341 to #5273 - loopymoomoo
Reply 0
(02/28/2016) [-]
what am i
a fukken physcologist?
#5279 to #5273 - whitechino ONLINE
Reply 0
(01/31/2016) [-]
Please take out the spoon or fork out
#5277 to #5273 - thumbfortrump
Reply +2
(01/30/2016) [-]
It's the contact between the spaghetti and the air that generates static electricity.
You should wrap the bowl in tin foil to make the bowl closed.
Also, looking directly at a micro wave oven is harmful for your eyes. You should set the oven for 5 minutes and walk out of the room to keep you from radiation.
Happy pasta making.
#5271 - boomerpyro
Reply 0
(01/27/2016) [-]
What happens if a black hole travels at light-speed?
#5421 to #5271 - Fgner ONLINE
Reply 0
(04/21/2016) [-]
Another person asks a question about what happens in the real world when something fundamentally, physically impossible happens.
#5272 to #5271 - andreslah
Reply 0
(01/27/2016) [-]
it goes fast
#5270 - cognosceteipsum
Reply 0
(01/26/2016) [-]
Marvin Minsky is dead /:
#5267 - dustykeyboard
Reply 0
(01/22/2016) [-]
If eating an apple in shows, movies and books also maybe real life makes your speach sound evil/assholey, then what fruit would you eat during a conversation to make you look more trustworthy/good intention?
#5296 to #5267 - soundofwinter
Reply 0
(02/07/2016) [-]
You don't eat during a conversation if you want to look trustworthy/good, unless it's some sort of dinner you are having with someone else. Then I would say meat/bread. Otherwise, stick to a drink like tea, coffee, or soda
#5268 to #5267 - drastronomy
Reply 0
(01/22/2016) [-]
A banana
And dont bite it