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Should the lid on an alcan foil tray be put on with white card side outside or inside?
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Why is paper red?
paper isnt red you idiot, the paper is white because trees are white deep inside. If you dont see white, you are not deep enough
Why aren't mirrors white?
For it to be considered a mirror, the surface must be smooth compared to the wavelength of light. Certainly smoother than a quarter of a wavelength.Whilst white reflects all colours, no restriction is made on the surface smoothness.A common mirror one meets is inside a prism, (e.g. inside prismatic binoculars) but these surfaces have no colour at all.
Why should a cinema screen be made rough and white?
Rough - to minimise reflections from the lighting in the cinema... White - to reflect ALL colours evenly !
What does red and white make?
Mixing the colors red and white should result in some sort of pink color.
What is the abstract for egg in bottle experiment?
First, the science behind a hard-boiled egg: Egg whites are made of water and proteins. Proteins are made of long chains of amino acids, but in an egg the chains are clumped tightly together in individual spheres. (These are called "globular proteins.") When the egg is heated, the proteins and water molecules begin to move faster. As they move and collide with each other, the individual protein chains start to "unravel," eventually bonding loosely with other protein chains, forming a network of protein with water trapped inside. The consistency has changed from runny egg white to a soft solid!So how does this squishy-but-solid egg get mysteriously pushed inside the bottle? The answer is all about air pressure. When you first set the egg on the bottle, the air pressure inside the bottle matched the air pressure outside, so nothing happened. When you dropped the burning paper into the bottle, it caused the air inside to heat up and expand rapidly. That expanding air pushed the egg aside and escaped from the bottle; that's why you saw the egg vibrating. When the fire consumed all the oxygen inside the bottle, the flame went out and the remaining air in the bottle cooled down. Cool air takes up less space, exerting less pressure inside the bottle. (The egg acted as a seal to prevent outside air from getting in to fill the extra space.) The result was an unbalanced force-the force of the air pushing on the egg from outside the bottle was greater than the force of the air pushing up on it from inside the bottle. Voila - the egg was pushed into the bottle!How do you get the egg out again? You need to increase the pressure inside the bottle. Turn the bottle upside down and tilt it until the small end of the egg is sitting in the mouth. Now put your mouth close to the bottle and blow, forcing more air into the bottle and raising the pressure inside. When you take your mouth away, the egg should pop out.
What is white on the outside and black on the inside?
Dirty Diaper: white outside and black inside.
What is white on the outside and yellow on the inside?
egg
What is green on the inside and white on the outside?
a frog sandwich
Is the yolk inside the egg or outside?
no, the egg yolk is just the yolk. and the egg white is just the white
What has eyes but can not see brown on the outside and white in the inside?
A potato
What is black and white in the inside and red in the outside and it is a vegetable?
news paper
What conceals black and white and is red on the inside and green on the outside?
A watermelon.
What is SOMETHING THAT'S WHITE ON THE INSIDE AND RED ON THE OUTSIDE THAT YOU CAN EAT?
Potato
What is white in the inside green on the outside and jumps like a rabbit?
frog sandwhich
What has eyes but not ear's has skin but no hair's is white inside and brown outside?
A potato
Is Miley white or black or Mexican or something else?
Miley is white and probably something else inside but outside shes white.
What is red and white on the outside but gray and white on the inside?
The answer to this riddle is "Campbell's Cream of Elephant Soup".
