If a helicopter hovers in the exact same place for 24 hours would he travel the world?! I'm tipsy so may make no sense
Quick Question thread
- Thread starter Captain Mike
- Start date
Currently reading:
Quick Question thread
- Status
no, they'd run out of fuel and crash.
no seriously they wouldn't because they're staying in the same place..... depends what air speed/location system they're using, but most would mean they wouldn't move around the earth, besides, it takes probably longer than 24 hours to travel around the world (in the earths atmosphere) by plane anyway..
i think he means about the earth rotating every 24 hours. so if the helicopter stays still, does the earth move beneath it and thus making it 'travel around the world'
ive never thought about it but it makes sense! but if it could be done it would have been done and we would know about it
ive never thought about it but it makes sense! but if it could be done it would have been done and we would know about it
whats your point of reference for staying still?
according to my calculations, if the helicopter is on the equator then it would have to fly about 1700 km/h in the opposite direction to the earth's rotation, just to stay in the same spot.
what about if the helicopter was in a polar orbit just out of earths atmosthear using a **** off magic powered jet engine
diy place flexi ducting will do, the metal one not plastic one
can you not add a fan into that as well?
Basically no, when a helicopter/Harrier hovers they are placing themselves in a geostationary orbit (much like a satellite in space) so although they are using their engine to fight the gravitational pull towards the earth, they will still get pulled along with the rotational forces and remain above the same spot (which is why you don't have to reposition your Sky dish every 10 minutes!). As Munkul has said, if they want to travel around the circumference of the earth in 24 hours they would need to be doing ridiculous speeds!
I do like your thinking though.
hmmm, so the atmosphere spins around with the earth is the main point here?
yes.
theres a key difference between jet planes and satellites though. Jet planes use their own power to orbit in a geostationary position, whereas satellites are far enough away from the earth to "float" above the earth, but not completely free from gravity. They are constantly accelerating towards the earth's centre under the power of gravity, which causes them to orbit.
The effect of zero gravity is only apparent because they are in equilibrium - that is, the gravitational force is equal to the rate at which they are constantly accelerating.
IIRC anyways. its been a year or two since i did physics
theres a key difference between jet planes and satellites though. Jet planes use their own power to orbit in a geostationary position, whereas satellites are far enough away from the earth to "float" above the earth, but not completely free from gravity. They are constantly accelerating towards the earth's centre under the power of gravity, which causes them to orbit.
The effect of zero gravity is only apparent because they are in equilibrium - that is, the gravitational force is equal to the rate at which they are constantly accelerating.
IIRC anyways. its been a year or two since i did physics
beef
what is it with beef with green and red ish bits in like tinted
what is it with beef with green and red ish bits in like tinted
Re: beef
green = old, probably imported cheap beef
green = old, probably imported cheap beef
Re: beef
its in date
probably is its like a sort of skin
its in date
probably is its like a sort of skin
Re: beef
it happens to bacon at work, usually as it due to go ood, or sue to the lights in the fridge
it happens to bacon at work, usually as it due to go ood, or sue to the lights in the fridge
Re: beef
go ood? and sue = due?
go ood? and sue = due?
Re: beef
out of date
out of date
the mk1 kid
Member
- Joined
- Jul 28, 2006
- Messages
- 705
- Points
- 134
Hi all,
I need a shirt, but not any old shirt, i'm a fussy bugger with a wedding to go to, and it's to go with my new suit, but can i find what i want? No!
Double cuff
Slim fit
Salmon pink (or just a nice pink - yes i'm in touch with my femanine side!)
15" collar
I've been around Clarks village (thats not a million miles away from me) and now had a troll on the interwebnet, but i cannot find the combo i'm after!
Anyone know/have one with a name i can look for?
Cheers
Tom
PS i'd need to by the weekend!
I need a shirt, but not any old shirt, i'm a fussy bugger with a wedding to go to, and it's to go with my new suit, but can i find what i want? No!
Double cuff
Slim fit
Salmon pink (or just a nice pink - yes i'm in touch with my femanine side!)
15" collar
I've been around Clarks village (thats not a million miles away from me) and now had a troll on the interwebnet, but i cannot find the combo i'm after!
Anyone know/have one with a name i can look for?
Cheers
Tom
PS i'd need to by the weekend!
Hi all,
I need a shirt, but not any old shirt, i'm a fussy bugger with a wedding to go to, and it's to go with my new suit, but can i find what i want? No!
Double cuff
Slim fit
Salmon pink (or just a nice pink - yes i'm in touch with my femanine side!)
15" collar
I've been around Clarks village (thats not a million miles away from me) and now had a troll on the interwebnet, but i cannot find the combo i'm after!
Anyone know/have one with a name i can look for?
Cheers
Tom
PS i'd need to by the weekend!
http://www.thomaspink.com/fcp/produ...l-Slim-Fit-Men's-Shirt---Double-Cuff/99903827
the mk1 kid
Member
- Joined
- Jul 28, 2006
- Messages
- 705
- Points
- 134
Nice (thanks), though i'll admit to seeing them and thinking they we're a little pricey, still if i dont do better!
Cheers
Tom
Cheers
Tom
- Status
