need a laugh

[solarman216]

Now if you were in a car travelling at the speed of light, on a road and shined a headlight onto the road, would you see the cat's eyes...?


Alex... this is not a challenge, it is a hypothetical question...:doh

of course not as nothing can travel at more than the speed of light ( as far as we know at this time), but neutrinos are passing through your body and the earth at very high numbers all the time, they pass between the gaps between atoms and electrons that make up your body and the so called solid earth and not very many collide with an atom, most pass through us and the earth unhindered, food for though, Rick

 

[solarman216]

I think the given is that the conveyor is there to cancel any forward movement from thrust.

yes in that case the plane cannot fly, but I do not know of a belt that can support 300 tonnes of plane and travel at 300 MPH, Rick

 

[solarman216]

Well it's friday night, not much on Tv... so here is my last thought...


If you were to lose all five of your senses, how would you know if you were truly alive?

Lets think of the five senses.
Sight
Hearing
Touch
Taste
Smell

think you would still be able feel your heartbeat, but what a life, Rick

 

[Lazy-Ferret]

yes in that case the plane cannot fly, but I do not know of a belt that can support 300 tonnes of plane and travel at 300 MPH, Rick

Surely the conveyor belt is immaterial, a plane does not use it's wheels to get momentum, so whether the ground is moving or not, once the jets, or prop spin up, the plane will move forward. Ok, so the wheels of the plane would have to be spinning relatively faster than than the plane is moving, but that is all.

 

[Terrano Steve]

I too would be interested to see this conveyor that is going to support the weight of the plane and accelerate at exactly the same speed as the plane accelerates.

 

[solarman216]

Surely the conveyor belt is immaterial, a plane does not use it's wheels to get momentum, so whether the ground is moving or not, once the jets, or prop spin up, the plane will move forward. Ok, so the wheels of the plane would have to be spinning relatively faster than than the plane is moving, but that is all.

I go with that Cllive, thrust is against the air, not being driven by the wheels, Rick

 

[Terrano Steve]

You are offered a pill that makes you 25% more intelligent but permanently removes your hair including eyebrows. Do you take it?


I have.. lol...
:lol

I clearly have not taken such a pill as I have loads of hair:stupid

 

[Lazy-Ferret]

OK Clive you have the second one, yes if all the ice sank there would be very little land mass to support life, if at all.

Don Simon yes only a gas can actually burn, so everything can burn but has to attain a temperature to turn it into a gas first, Rick

OK, I put a lot of thought into this last night... sad I know... but I guess the first issue, is how you define a solid. If you are saying it has to be a "Pure" material, then that cuts the number of available things down considerably. E.g, You can't have brass, but you can have Copper, Tin, and Zinc. If this is the case, what about Magnesium, it is a solid, can be melted into a liquid, but will combust, even burning in non-oxygen environments. So surely this is a Solid that can burn?

The bit I find ironic is, it also used to fireproof wood???

 

[solarman216]

OK, I put a lot of thought into this last night... sad I know... but I guess the first issue, is how you define a solid. If you are saying it has to be a "Pure" material, then that cuts the number of available things down considerably. E.g, You can't have brass, but you can have Copper, Tin, and Zinc. If this is the case, what about Magnesium, it is a solid, can be melted into a liquid, but will combust, even burning in non-oxygen environments. So surely this is a Solid that can burn?

The bit I find ironic is, it also used to fireproof wood???

The short answer at the end of the day is everything can be made to "burn" but all has to turned into a gas first, Rick

 

[Mobieus_uk]

my short answers are yes the plane will take off and everything burns eventually

 

[supergnome]

Rustic.....got any of those pills left??

 

[rustic]

Rustic.....got any of those pills left??

Got some new ones today....:doh

 

[macabethiel]

No need for air

I go with that Cllive, thrust is against the air, not being driven by the wheels, Rick

Just a minor point thrust works in a vacuum no need for air I suspect one of Newtons Laws applies somewhere in all of this!

Add up all the forces acting on the Plane and you would get the result. (Including Gravity, friction etc)