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View Full Version : Gravity? We don't need no steenking gravity!



Govtcheez
03-25-2002, 03:18 PM
http://www.latimes.com/news/opinion/commentary/la-000021224mar24.story?coll=la-news-comment-opinions

Is this possible?

ygfperson
03-25-2002, 03:45 PM
no. as usual, i'm skeptical. the details of the experiment don't exist (or at least not publicly). it's based on the heresay of a scientist, which is never a good idea. why, just a month ago, they were talking about nuclear fusion in a coffee pot-sized reactor, boiling bubbles.

basilisk
03-25-2002, 05:03 PM
gravity sucks !!
sorry had to put that one in somewhere
don't really know about the possibilities of the experiment - its very difficult to come up with a supposition when the paper itself is so wishy-washy. However it seems as though no-one has been able to duplicate correctly the work yet and if someone had really been able to produce this wouldnt they be desperate for their paper to be published (nobel prize material and all that)

Aran
03-25-2002, 05:23 PM
this is possible

you can nullify gravity, although to make your grandmother float you would need magnets of enormous size (a few hundred tons perhaps).

shtarker
03-26-2002, 01:32 AM
Either Nassa or the us airforce are always coming up with new crazy plans like this. In the 70's they had some project Orion where they planned to propell huge manned space crafts using blasts from nuclear warheads.

novacain
03-26-2002, 03:12 AM
Lets not forget the 'chicken cannon' for stress testing aircraft.

(take a chicken, load it into a cannon and shoot it at a plane to see if the plane can survive an impact with a flying bird)

Deckard
03-26-2002, 06:29 AM
Originally posted by novacain
(take a chicken, load it into a cannon and shoot it at a plane to see if the plane can survive an impact with a flying bird) Oh my God. I can't believe I've wasted all these years in programming only to find out I could have been shooting chickens out of cannons. I want to be a Fowl Ballistics Engineer!

lightatdawn
03-26-2002, 11:12 AM
;) *cut n' paste*

Sometimes it DOES take a rocket scientist:

Scientists at NASA built a gun specifically to launch dead chickens at the
windshields of airliners, military jets and the space shuttle, all travelling
at maximum velocity. The idea was to simulate the frequent incidents of
collisions with airborne fowl to test the strength of the windshields.

British engineers heard about the gun and were eager to test it on the
windshields of their new high speed trains. Arrangements were made, and a gun
was sent to the British engineers. When the gun was fired, engineers stood
shocked as the chicken hurtled out of the barrel, crashed into the
shatterproof shield, smashed it to smithereens, blasted through the control
console, snapped the engineer's backrest in two and embedded itself in the
back wall of the cabin, like an arrow shot from a bow.

The horrified Brits sent NASA the disastrous results of the experiment, along
with the designs of the windshield, and begged the U.S. scientists for suggestions.

NASA responded with a one-line memo: "Thaw the chicken."

Unregistered
03-26-2002, 11:15 AM
Thats the funniest thing I've heard in ages. Can't be true though, the British would never make such a silly mistake, would they??

Govtcheez
03-26-2002, 11:16 AM
I've seen tests of the chicken gun on TLC or the Discovery Channel - it's hilarious. On one, they slowed it down so we could see the chicken come out and impact it.

Imagine the mess a successful test would make....

stevey
03-26-2002, 11:34 AM
the frozen chicken thing is a classic, first laugh ive had all day !!

unfortunately i must stick up for the British nation, i'm afraid its not true.
i worked for a company that sold engine parts to Rolls Royce Aerospace, and have seen videos of the chicken testing. its hilarious to watch !! should be shown on TV !! "when chickens attack" !!
they were firing the poor little birds into engines to see if the engine could take an impact without shattering a turbine blade - so all of us who fly will appreciate the serious aspect of this. there was even standards all engines must pass, a certain mass of chicken per minute to simulate running into a flock of birds. they were also using large turkeys to simulate big birds like swans !!!
fascinating and hilarious.

but the RR engineers told the same joke the other way round !!!
ie NASA used em frozen.

still they may have turned it round to cover there tracks !!!

lightatdawn
03-26-2002, 11:36 AM
No, its just a joke. But it pretty hilarious to think about.

And about the whole anti-gravity thing (origional point of the post, remember? ;)) - It is possible to levitate an object. I dont have any data on it right now but a buddy of mine takes a lot of advanced physics and was telling me about an experiment they did where they levitated a penny. I'm talking about fractions of a second but i'm assuming thiers was a simplified process...

Govtcheez
03-26-2002, 11:40 AM
> And about the whole anti-gravity thing (origional point of the post, remember? )

Oh yeah...

I wonder if more places would adopt the same sort of technology as electromag trains, if it got less expensive....

stevey
03-26-2002, 11:50 AM
i originally trained as a Materials engineer, and was taught a fair bit about super-conductors, magnetism etc.
it was thought at the time (10 years ago) that soon a room temperature super conductor would be produced, thereby achieving the levitation only currently seen at liquid nitrogen temps. its not happened yet, but if and when it does, we may defeat gravity. no friction for moving vehicles will have a tremendous impact !! you could push a train by hand !!

then again, my lecturers were also predicting ceramic car engines, and ceramic scissors and they never took off.

ober
03-26-2002, 12:00 PM
Originally posted by stevey
unfortunately i must stick up for the British nation

is your real name, by chance, william? or do you have direct ties to the queen?

stevey
03-26-2002, 12:43 PM
Originally posted by ober5861


is your real name, by chance, william? or do you have direct ties to the queen?

hehe
i think i'm about 40 millionth in line to the Throne.

actually i'd get rid of the whole bunch of em, except that they do attract loads of dough in tourist money.
well they did, apparently Americans are too scared to fly now !!!

-KEN-
03-26-2002, 06:40 PM
>>Either Nassa or the us airforce are always coming up with new crazy plans like this. In the 70's they had some project Orion where they planned to propell huge manned space crafts using blasts from nuclear warheads.<<

That's nothing! I once heard of this hting called "Apollo" where they tried to get a man on the moon. Now isn't that silly?

-KEN-
03-26-2002, 07:58 PM
I'm not at liberty to say, but I'll give you a clue: "The fowl foul fly as the crow at midnight"

:eek: I've said too much! Share the knowledge with the world!! "They" are after me!

aaarrrgghhh!! *gurgle* ::faint clucking noise in the distance::

dbaryl
03-27-2002, 01:18 AM
back to the gravity topic... take a look at this:

levitating frogs (http://www-hfml.sci.kun.nl/froglev.html)

stevey
03-28-2002, 12:07 PM
Originally posted by dbaryl
back to the gravity topic... take a look at this:

levitating frogs (http://www-hfml.sci.kun.nl/froglev.html)

poor little froggy.
he's floating due to high magnetic fields which takes energy to produce.
what we really need is a room temperature superconductor, then gravity will be defeated and we can hover about like in Star Wars.
Or do i watch too much sci-fi ?????

Aran
03-28-2002, 12:44 PM
people iin starwars could hover at will?

it was just some of their vehicles, methinks.

Deckard
03-28-2002, 12:48 PM
I can hover at Will. Will really hates that.

stevey
03-28-2002, 07:24 PM
yeah poor Will

people are always firing at him too