Posted by boto43
Hi folk! What have you had for lunch today? I just have ordered a grilled chicken,french fries and cabbage salad.
Posted by Vlammetje
chicken soup, bread with dutch cheese and fresh orange juice
Posted by Ayush
Soup and juice together!? I had rice and pulses. :-)
Posted by mixin
i got chicken and sweetcorn soup, or i can goto subway for my steak and cheese sub
Posted by Vlammetje
soup is an appetizer
Posted by switchbitch
I had a chicken royale from BK followed by a cheeseburger. As always, i removed that hideously disgusting bit of pickle. Does anyone actually like the pickle? I'm certain nobody can have such bad taste.
Posted by BobaFett
lamb ragout soup, sliced and roasted chicken breast with vegetables and rice.
Posted by soichiro
this was my lunch today
mmmm.........yummy!
and i like pickles too!
Posted by BobaFett
i am really sorry, but how can u eat this synthetic astronaut food?
Posted by soichiro
and why is that so??
Posted by Vlammetje
astronauts eat rubber ducks?
the things you learn on esato...
Posted by switchbitch
No you crazy hollander, they play with them in the tub, you ARE allowed some luxuries in space you know.
Posted by axxxr
Pizza for me!!
Posted by Vlammetje
how does the water stay in the tub??
Posted by BobaFett
@soichiro i am not a big fan of those fast food stories. i prefer a good soup, some meat with garnish and a small dessert. for that money i get it here in a cheap restaurant.
Posted by soichiro
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good question!
Posted by djpowelly
hehe lol... a microwave burger from tesco's! lol
Posted by Sammy_boy
Nothing exciting for me... just some cheese on toast (cooked by my own fair hand!) pack of crisps and a Snickers choccie bar!
No rubber duckies though
Posted by switchbitch
Vlammetje your ignorance dissuades me from continuing my life, and general interaction with humans. Clearly, as you have never been in space, i shall be forced to explaining this to you. One of Newton's basic laws of physics states that an object (be it a planet, a molecule, or quantum particle) shall retain a state of rest, unless an outside force is applied to it. (When i say rest, i mean that it will retain its momentum, without change in energy or spacial vectors). Now consider a bathtub full of water molecules. These molecules will see no force acting on them which will cause them to exit the tub. "ah" you may say, "but water, being liquid, already has enough energy in its molecules to cause them to simply expel from the surface of the liquid and fly of into the room" Well yes, that would be the case, if it wasnt for SURFACE TENSION. See, this is why the moon has no atmosphere. A gas molecule of say, nitrogen, moves around with a velocity which actually exceeds the required velocity to escape the gravitational field of an object (escape velocity) the size of the moon, so it will just fly off into space. In order for a planet to retain its atmosphere, it must have enough mass to have a gravitational field- and therefore escape velocity- strong enough to exceed that of the velocity of the particles moving around within that gas. Now back to our bathtub, people think theres no gravity in a near earth orbit. Wrong. There is almost as much gravity as there is at ground level. If there were no gravity, the spacecraft wouldnt stay in orbit, it would just peel off into outer space. Its the fact that the craft, and everything in it, including our bathtub and water molecules, are in FREEFALL. This creates an EFFECT of weightlessness, which is a situation with properties similar to complete weightlessness, which of course, cannot exist in a universe which contains mass. NOW, since we are in a bathtub filled with water in what we can consider a weightless environment, it does become apparent that the water molecules would have enough momentum to escape. However, the attractive bond exhibited by water molecules at the surface of the liquid, creates a 'skin' on the surface which prevents the molecules escaping, almost like a sheet of cling film over the top. This whole system, unfortunately, will be thrown into complete turmoil if our astronaut splashes around too much. So yes, the water will stay in the tub, but you have to be careful if you want to keep it there. Thanks for your attention, i hope we have all learned something here today.
Posted by Vlammetje
we have.
Can we move on to lesson 2 now?
Assuming the rocket did not launch with a tub filled with water on board (bit of a bumpy ride going through the atmosphere with thrusters on and such...... how does the astronaut fill the tub whilstin space?
Posted by switchbitch
Well we're making assumptions now arent we? Presumably, if the astronauts wished to take a bathtub of water into space with them, it would prove unnecessary and inefficient to transport that water in any container other than the bathtub. It would be an unacceptable waste of energy and manpower to have to transfer the liquid from the transport container to the bathtub. Therefore it follows that it would be far easier to take the water into space in the tub. To do this, i suggest they fill the tub prior to loading it onto the space transportation vehicle, and freeze it. A solid mass of water would of course be much more suitable for transportation purposes. It could then be thawed out in the ambient heat of the spacecraft, and dumped into a decaying orbit before re-entry.
p.s today i had chow mein super noodles.
_________________
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Five star Esato member; all round quality posting.
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[ This Message was edited by: switchbitch on 2004-04-16 13:46 ]
Posted by Cycovision
Wow, this is really fascinating stuff.
I suppose that the space ship could also be put into rotation, in such a way that the centripetal force created matches that of the gravitational pull of the earth. That way, everything in the ship would be 'flung' towards the walls, including the bathtub and the water contained in it. The astronaut could then splash about as much he likes, although if the rotation of the ship were too fast, the centripetal force would be too high and the rubber dack / chicken would sink to the bottom of the bath. And the guy wouldn't be able to get out of the bath. And it might make him feel a bit sick.
I had a Tuna and mayonaise roll and a raspberry flapjack, by the way.
Posted by switchbitch
I disagree. No matter how strong the "centripetal" force (which is actually an imaginary force used to describe the unusual effects of angular velocity), the rubber duck will not sink. If the gravitational force exerted on the bathtub was to increase, it would increase the weight of the duck, but it would not affect the density. Since the duck is far less dense than the water, it would continue to float regardless of the "intensity" of the gravitational force.
_________________
1st lieutenant and military advisor of ELF; chief in command of breakable objects.
Five star Esato member; all round quality posting.
* * * * * (Highly respected)
[ This Message was edited by: switchbitch on 2004-04-16 14:15 ]
Posted by Cycovision
Ah, no,no,no!!!
CentriFUGAL force is imaginary! Centripetal force is an actual force that exists between the centre point of rotation and the object that is in a state of angular acceleration. It acts TOWARDS the centre point of rotation, not away from it as many people would expect. It's the reaction of this centripetal force that people call 'centrifugal force' (Newton's third law)
http://hyperphysics.phy-astr.gsu.edu/hbase/cf.html
And as for the duck sinking, if the 'force' (or effect of rotation whatever) pushing it down in the water became greater than the upthrust caused by the boyancy effect of the water on the duck, then it could well sink to the bottom of the bath. Density has nothing to do with it, it's like you using your hand to push the duck to the bottom of the bath.
That Tuna and Mayo Roll was delicious, it really was.
_________________
'He who laughs last, laughs longest. Or didn't get the joke...'
[ This Message was edited by: Cycovision on 2004-04-16 14:38 ]
Posted by switchbitch
My mistake, getting mixed up with my centrifugal and centripetal. I disagree though, with your analogy of "pushing" the duck with your hand. If the water was experiencing a higher gravitational force, then it would take much more downward force by the duck to displace its own volume of water, since the water's weight has also increased. Since the gravitational effect acting on both the duck and the water is the same, these effects would essentially cancel out....
Posted by Cycovision
Possibility....I feel an experiment coming on!
Anyone got a bucket of water, a bit of rope and a rubber duck?
Posted by switchbitch
I cant continue my life without knowing the answer to this, so i shall endeavour to come up with some sort of solution.
Posted by sn3ipen
I had a hamburger at burger king as always. I eat there like three times a week and the rest of the days i am having a pizza slice from peppes.