shootthebandit said:
actually this is apparently false.. they can pierce our skin.. if i remember correctly it was on myth busters <3
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actually this is apparently false.. they can pierce our skin.. if i remember correctly it was on myth busters <3
Ah, now that you mention it, I do vaguely remember a Mythbusters episode about that.MetalBride said:
Damn.
After she ruined duckies, kitties and puppies, I dared not ask.Pandalisk said:
Seriously. She went into detail.
Horrifying detail.
Koala Bears are not born with the bacteria they need to digest Eucalyptus leaves and as cubs must eat their mothers feces in order to get the necessary bacteria, talk about taking shit from mom.Monkfish Acc. said:
http://www.youtube.com/watch?v=GdQPPXqpfPQ
Did you know that sea otters can have more than a million hairs per square inch in their fur coat? They also eat 25% of their body weight every day, and spend about a third of their life grooming.
Kinda doubt it's true, but apparently whale ejaculate could behead a man.
Kinda doubt it's true, but apparently whale ejaculate could behead a man.
The bullet actually descends right as it's shot (assuming it's shot parallel to the ground). They receive none, if very little, lift from being fired. It will just travel much further horizontally than the still object.deanoxxx said:
Jonah was noclipping! HAX!sooperman said:
... What did I do to deserve this?Rigs83 said:
Was it the murderin'?
But I really like murderin'...
(I actually had already heard this. Koalas are a fountain of odd facts, aren't they?)
Some people in my school a few years ago entered a "science fair" kind of thing (BT Young Scientist, if you must know). There project was training a goldfish to swim through hoops. proving that they do retain some information.PureChaos said:
If it shot perfectly horizontally it begins its decent immediately after leaving the barrel, and accelerates at 9.8 meters per second per second until it hits the floor. The muzzle velocity will determine the horizontal distance traveled, the height off the ground determines the time of flight. I can put that algebraically but its kind of hard to write algebra in text form!deanoxxx said:
The first recorded use of this "fact" was in an internet article describing all sorts of stupid stuff that people believe, this was one that the author made up herself.Supraliminal said:
(http://www.snopes.com/science/stats/spiders.asp)
The koala is not a bear. (http://en.wikipedia.org/wiki/Koala) Although hardly anyone outside Australia cares to make the distinction, so I'll let this one slide.Rigs83 said:
Technically no. He ate very little meat, but was not vegetarian and had a love of Bavarian sausages.Rickyvantof said:
http://en.wikipedia.org/wiki/Adolf_Hitler's_vegetarianism
Jonah was actually swallowed by a fish, not a whale.ShotgunShaman said:
The Daddy-Long legs issue is made more complicated by the fact that there are several species that go by that name. In britain it's a crane-fly, in Australia Pholcidae. Crane-flies are non-venomous. Pholcidae IS, can penetrate human skin, but is incredibly mild.shootthebandit said:
This is the most wrong fact I have ever seen. If this were true the population would halve every generation (unless they have MASSIVE litters)Triple AD said:
In fact, they are serially monogamous (one partner a year. Inter-year monogamy of 15%) and lay one egg at a time.
(http://en.wikipedia.org/wiki/Emporer_penguin#Courtship_and_breeding)
Apparently, there is a one in 200 billion chance of dying by tea cosy.
And daddy-long-legs are called that in Britain as well.
And daddy-long-legs are called that in Britain as well.
Male dragonflies scoop out the inside of the female before mating to get rid of any other sperm. Female cockroaches get less picky about their choice of mate as they get older. I know far too much about insect sex.
Actually immediately because Earth is a curved surface, the distance it travels before it hits' the ground is affected by how much force is behind it but it will still hit the ground at the same time so if you fired a two perfectly level handgun and rifle fired from the same height the bullet won't land at the same spot but they will land at the same time.deanoxxx said:
Their is some debate and my algebra is no where near good enough to make a model but I have a link to the discussions on yahoo;
http://answers.yahoo.com/question/index?qid=20080115092729AACG5m4
and some math here:
http://community.discovery.com/eve/forums/a/tpc/f/7501919888/m/5221963999/p/1
A fired bullet (along with the dropped bullet) has no lift (upward force) acting on it. So the only force acting on the height the fired bullet or the dropped bullet is gravity. Since they have an equal amount of downward force (gravity) acting on them and no upward force (lift) acting on them, the total force acting on each bullet is equal. This means that they will take the same amount of time to hit the ground.
To toss a bit of math into the explanation...
t = sqrt(2x/g)
t = time
sqrt = square root
x = initial height
g = force of gravity
Since x and g are the same for both a fired bullet and a dropped bullet, t will be equal as well.
With regards to air resistance, yes it will affect things and no they will not hit the ground at EXACTLY the same time. But, the difference will be tiny since the starting height of this experiment is (at least my mind) about 5 feet. I can't say exactly how much longer it would take a horizontal bullet to fall that distance versus a tumbling one, but I know it's not more than .1 seconds or so.
(I might get strung up for this one.) I think the intent of the physics teacher saying that they hit the ground at the same time is just to illustrate that even though the two bullets seem vastly different, the forces acting on them are the same.