A flame has the classical teardrop shape because of convective air flow; as the hot, thin air rises (less dense things rise, while more dense fluids sink), the combustion process is carried up with it. Cool dense air flows in below it, providing fresh oxygen to the flame.
In zero-G, hot things don't rise and cold things don't sink. (With no gravity, which way would be "rise" and which way would be "sink"?) Hot gasses expand - but there's no gravity to pull cold, dense material down and allow the hot, thin gasses to rise.
So in zero-G, a flame is circular - until it goes out, snuffed by the carbon dioxide that gathers around it. With no convection, fresh air can't get to it.
If you wanted to burn a candle in the space station, you would need to provide a tiny fan to blow the CO2 away and blow fresh air in to the flame. Of course, this would be an INCREDIBLY STUPID THING TO DO, because oxygen is precious and expensive; it has to be flown up by rockets!
The change in entropy equals zero when a process is reversible, meaning that the system and surroundings return to their original state without any net change in entropy.
Yes, at equilibrium, the standard Gibbs free energy change (G) is equal to zero.
A temperature change of 100 K is equivalent to a change of 100 degrees Celsius. This is because the size of a degree Celsius and a Kelvin is the same, but the zero point is different (0 K is absolute zero while 0°C is the freezing point of water).
Water freezing at zero degrees Celsius is a physical change. This is because the change in temperature causes the water molecules to slow down and form a solid structure, without altering the chemical composition of water.
Stone is considered to be non-combustible. Stone has no fire rating at all. Stone has been tested before and shows zero fire hazard and shows zero flame spread.
no. it remains at it is even at zero gravity
In a zero G spacecraft, it would be just a small sphere of flame that lasts a couple of seconds and goes out..
The zero gravity pen has never been changed or updated because it is almost flawless and nobody has anything to add to it.AnswerThe zero gravity pen relies on the polarity of water in the ink to induce the capillary action to draw ink down to the ball of the pen. Since this doesn't rely on gravity, there is no change when the pen is used on earth.
Zero! that's why it is called zero gravity!
In zero gravity, an object will typically stay in place if it is not acted upon by any external forces. If an external force is applied, the object may move in the direction of that force. Objects can float or move about freely in zero gravity depending on their initial state.
zero gravity
Depends on the atmosphere. location, place, space and time of zero gravity
Gravity causes water to flow downhill. A blob of water released inside a spacecraft under zero gravity, will form a floating sphere. On earth, If there are no sides to retain the water, the water spreads out and forms a puddle.
Yes; the gravity from different sides should cancel, for a net result of zero gravity.
Zero Gravity Research Facility was created in 1966.
Zero Gravity Amusement Park was created in 1992.
Zero Gravity - song - was created on 2012-03-20.