I was watching this tv show ages ago, but i missed the end and have wondered ever since...how do they do it, since they can`t fly upside down, right...?
131763
seen a video to the end - the fly indeed doesnt fly upside down , it just flies close to ceiling, then sticks its front legs in front of itself and "palms up" to touch the ceiling above head, then go the second and then third pairs of legs so the fly sits on the ceiling with head facing the oposite direction than when it was flying. \n\nJust as if it wanted to land on a wall , only it flips 180degrees and not just 90
350010
The creators/writers/producers of the show have stated many times that all the show's mysteries will be able to be explained in a scientific way.  In other words, they are NOT in purgatory, it's not all in someone's head, it's not a dream blah blah blah. \n\nThe numbers?  Well, there are a lot of common things that share the numbers, but we'll have to wait and see what they really mean.
346959
none they work eccentrically in the down phase
71730
Look it up under "freefall" simulator.\n\nHave fun.\n\n=8-)
571896
Yep- he did get back home- in the last few episodes something happened ( Can't remember exactly what) but Al was doing the leaps and Sam was the hologram. He got to see his wife for a bit- she wanted him to stop leaping. In the last episode, he started running into a lot of people he had been before. He told his wife he had to do it a bit longer and something happened. It said he was stuck leaping forever.
444352
The U.S. government has many such secret anti-gravity aircrafts which they test in the western U.S.   This is one of them that you and your friend saw.  See the attached link for a picture.
566020
Did you ever see them getting out of a car?  It's like a clown car.  I once looked on the other side of the car to see if they were re entering the car and exiting again............I thought it was a joke.  It wasn't.
16140
It's an illusion.  \n\nWhen a magician claims he can fly, of course everyone in the audience looks for the cable hanging from the ceiling which is holding him up.  But you couldn't see it, and his assistants probably swung things over his head showing that there wasn't anything there, right?  \n\nWell, of course he is being held up by SOMETHING.  The trick is that the cables stretch SIDEWAYS from his body.  He is still being held up, but the cable isn't where everybody knows it should be, and so they don't see it.  Additionally, he probably had some sort of glitzy, shifting, reflective backdrop to create optical confusion and further hide the cables.
71726
FLY! And effortlessly... I've gotten used to walking, being in thee city...but flying around instead of walking is something I've wanted to do since I was a cub, lol...so unbearlike, right? It'd be cool and for some reason less energy-burning if there are wings for gliding..
69552
Yes, the discover channel show myth busters actually did a show on this once after someone asked the same question because they watched a cannon ball bounce in a war movie.  Cannon balls are very heavy...so if they hit a soft or low density surface like dirt or grass they will generally make a divet and come to rest where they land.  However, if shot from a low trajectory they CAN skip...like skipping rocks on a lake...in fact if shot at a fast enough speed they can even skip ON a lake themself.  When dropped from ontop of the myth busters studio building the cannon ball hit the concrete, did some major damage that made Jamie really mad and rolled off the sidewalk BUT fascinatingly enough...slow frame film showed, afterward, that when the cannon ball rolled off the sidewalk it actually bounced once...a tiny tiny bit.  They also did some research with revolutionary and civil war historians and found that a VAST majority of cannon ball injuries from that era actually CAME from low flying cannon balls taking off legs and such just like in the movie.  In fact the true myth wasn't the bouncing of cannon balls...it was the big explosion of dirt and shrapnel that fly out and take down 15 guys around it.  Cannon balls dont break up when they land like grenades and bombs...so that doesn't really happen.  Sometimes if the ground is soft enough there will be a big dust cloud but unless the ground is covered in nails and scrap metal...there won't be any shrapnel in the dust cloud to cause damage.  Most of the time, though, the ground was uncultivated so it was generally hard enough that a cannon ball landed with a thud and stayed there.  According to the experts there were even opportunities after a battle for the winning side to go out and gather up all the expended canon balls off the field and re-use them.  The single greatest danger from cannon balls at that time was actually the low flying bouncing ones that skipped over the ground and ripped legs off as it went...(by the way in the scene in The Patriot where it bounced high enough to take the guys head off...that was busted.  They're too dense to actually BOUNCE like that...they more or less SKIP which is still a form of bouncing but most injuries were leg injuries NOT decapitation by cannon ball)...there was a low chance of a cannon ball landing directly on a person but the odds were outstanding...I can't recall the actual numbers now but I know when I watched it...my jaw dropped.
573221
It must be hard to figure out the angles of stars and maintain flight... \nI'm sure they have other instincts that aid them in finding their way home.
187490
It's not so much that a bat has to hang upside down, some bats, such as the famous vampire bat, are quite good at moving around on the ground using their feet and wings as locomotory limbs.\n\nMost bats have developed adaptations that allow them to hang upside down easily.  The tendons and ligaments in their feet are arranged in such a way that their natural position is 'flexed'.  It actually takes deliberate effort for them to let go with their feet.  So when they wrap their toes around a branch, or hook their claws on a crack or crevice in the rock, they can rest and even sleep without fear of falling off.  Their feet are locked in place.\n\nMost bats have their feet pretty much turned around, so that if they were lying down, the soles of their feet would point up.  This makes roosting and even catching flying prey easier, but makes walking somewhat ackward.  While they can do it if they really need to, they usually don't.  Sort of like a human crawling on their hands and knees.  We can do it, but it's not really what our limbs are adapted to do.
179865
Hummingbirds can fly right, left, up, down, backwards, even upside down due to their special wings. Hummingbirds are also able to hover by flapping their wings in a figure - 8 pattern.   http://www.kidsplanet.org/factsheets/hummingbirds.html
4545
The rotational energy you impart to the object when spinning overcomes the force of gravity that would topple a stationary object.  \n\nA total layman's explanation:\n\nA perfect stationary top perfectly balanced will not fall over.  In real life though,it's impossible to perfectly balance a top.  It's shape practically guarantees that its center of gravity will not be directly over the balance point for any practical length of time.  Imperfections in the material will cause a slightly uneven weight distribution, air currents will introduce a small force, and mechanical vibrations will be transmitted through the medium the top rests on.  The upshot of all this is that as soon as the center of mass is no longer over the resting point, gravity is going to pull the top over.  \n\nNow gravity has an acceleration of 32 feet per second squared (if I remember my ancient high school course correctly).  It can only topple the top at a specific speed.  If you spin the top fast enough, any side that gravity tries to "pull down" will translate around so quickly that it literally has no time to fall.  If you were standing on a planet with a much higher gravity, you'd have to spin the top far faster to achieve stability, and if you were on the moon, it would spin for a much longer time. Eventually, however, the top starts to slow and the tip will inscribe little circles.  That action is called "precession".  And of course, eventually the thing drops to the table and the game is all up once it slows enough.\n\nAgain, that's a layman's view of how it works.  Some college physics major is probably going to come in here and make my answer look really foolish.
333687
I don't really know, but I wanted to tell you that this is my favorite all-time question on this site.\n\nI WISH I knew how to rudder-fy a duck--I'd really love to help you out with this one.\n\nI do have a question though--if the duck didn't swim in circles (or at least ovals) wouldn't the duck crash into the side of the tub?\n\nThanks for posting this this morning.
286241
As I have told every one else who asks this, yes, it is scientifically plausible, but whether we would be able to successfully use this technology is indeed questionable. As we have seen on the show, all of the technology is so far beyond our level of comprehension and understanding, as Jacob/Selmak was trying to explain to Jack in Exodus, when he wanted him to leave the Mothership with the Tok'ra, and he was right about how far beyond us the technology is. For example, in Tangent when they attempted to modify a death glider, even Carter admitted that they didn't completely understand the physics of the ship, and as Jacob Selmak stated:\n"And, what were you thinking, anyway? Retrofitting a death glider? You should have known better. The technology you're screwing around with is way over your head!......you've got to learn to take small steps. You can't just slap a US Air Force sticker on the side of a death glider and call it yours. Advancement like that has to be earned."\n\nAnyway back to your original question, as I said earlier, it's really only a matter of science; take for example the Asgard beaming technology and the Goa'uld transport rings. Transport rings, when in position, transmit all matter within their circular formation to another pair of rings at a different location, utilizing a conduit of bright energy. If there is a person or object on the receiving end, the rings can exchange the two simultaneously. Asgard transporters on the other hand, use energy beams to dematerialize their subjects and send their energy forms away at near-light speeds to the designated coordinates.
207240
yes, you are right- the ideas of up and down are indeed relative. On earth, we have a wonderous and magical force called gravity- which solves the problem easily as we are best one way up really. so technically, neither you nor the paper is upside down. It does however make sense to assume in such a situation that the paper is at fault and turn it round, rather than yourself. Or does that pose another question?