why air crafts have tyre made of conducting rubber?
455663
When aircraft are flying, they build up an electric charge from the surrounding atmosphere.  The tires help to safely conduct that charge to the ground when the aircraft lands.
117325
Thomas Savery invented the Steam Engine\nhttp://inventors.about.com/library/inventors/blsavery1.htm\n\nThe English word ``rubber'' was coined by Joseph Priestley, the discoverer of oxygen, from its use in rubbing out pencil marks. The term ``India rubber'' was given to it because it was first brought to Europe from the West Indies, the land that Columbus and his contemporaries thought was India. The word ``elastomer'' is now generally used to describe materials that have rubberlike properties.\n\nFrom excavations of ruins in Central and South America, it seems likely that rubber was known to the Maya Indians as early as the 11th century. It is reported that the Spaniards under Columbus saw the natives of Haiti using rubber in various ways. Long afterward, in 1731, Portuguese missionaries exploring the Amazon Valley found the Indians there using rubber to make useful articles.\n\nThe first record of scientific importance was written by Charles Marie de la Condamine, who was commissioned in 1735 by the Academy of Science of Paris to measure a degree of the meridian in South America. In his eight years of travel he made many observations and sent home, among other things, specimens of rubber. He wrote, ``The natives prepare watertight shoes of one piece from this material. They also spread it over an earthen flasklike form, and when the fluid has solidified, they break up the earthen form, remove the fragments through the neck of the bottle, and thus obtain a light, unbreakable vessel suitable for holding liquids.''
103802
Sand if its a heavy bag... Air if its a speed bag
197658
when a Tyre heats up it starts to excrete oil from the rubber the smoke is caused by heat generated by the wheel spinning and it is enough heat to burn of the oil Tyre's are made up of a lot of oil
150992
Weight.  Sponge rubber has a number of cells in it that are gas-filled, hence the name "sponge".  A piece of solid rubber will weight much more than a piece of sponge rubber.\n\nOf course, different rubbers also have slightly different densities, i.e. natural latex rubber will be different from silicone rubber, SIBS rubber, etc.
1045032
We're hiring slowly, but growing. We build many telecommunication spacecraft. Most large structures are Composite while smaller structures and components are aluminum.\n The industry will soon develop a replacement for the Shuttle which only has a few years left of service
616859
hello \nI am kikamela!\nI've noticed that nobody answered so far!\n\nso,  I am not experienced in this field, but since nobody answered yet, I would like to redirect u to a forum:\nhttp://www.infohub.com/forums/showthread.php?t=3993&highlight=tires\n\nthere are some really experienced people there you can talk to, so maybe this will help you to get a field of what u need! hopefully it's useful!
192585
Due to the force of gravity which exert a pressure on all objects towards the center of the earth.This force makes pressure on the entire car which in turn transfers the force onto the tyres.Hence the tyres are always flat at the bottom.\n\nFor more information you can make a search on Sir Issac Newton's Law of gravity.
269556
A bike rims can be made up of several different materials. Most on modern racing bikes are aluminium but as technology and material get better rims are starting to be made of lighter materials like carbon fibre. These carbon fibre rims can also be made more aerodynamic thus reducing the amount of force needed to drive the bike forward at higher speeds. The most common rims are aluminium but some older types are steel. You also have to use different break blocks for carbon and aluminium rims.\n\nChains are mostly steal - Nothing else really has the strength.\n\nThe seat! Well most common meteral is leather or an made made version of leather over a foam inner with a plastic base amd metal rails. The rails are mostly steal but can also be titainum which is light and strong. Newer saddles can be made of carbon fiber to but they are hard and expensive and only really used by the pros.\n\nThe frame can be made from steal, amluminum, titanium or carbon or a mixure of all 4. Carbon fiber frames can be specially shaped to be more aero dynamic.\n\nHope this helps!
530728
Un-vulcanized rubber melts in hot weather, and becomes brittle in cold weather, vulcanizing is a fancy word for weatherproofing tires so they can withstand high and low temperatures
882307
Sorry but only the first answer was close.  The air inside the baloon is compressed, because of its containmentt inside the stressed rubber.  (You need to blow to fill a baloon).  When the rubber is split, the air expands rapidly to equal the surrounding pressure.  This rapid expansion propogates outward, causing tha bang
421510
It's a low explosive; a mixture of oxidising agent (the potassium permanganate) and something that burns (the magnesium powder).   A low explosive is a fast-burning mixture, like this, or gunpowder.   High explosives like TNT and nitroglycerin and sodium azide (the explosive compound that inflates air bags), all have nitrogen bonds that suddenly break.   If you set off a long trail of high explosive, the explosion propagates along much faster than ordinary burning.   The mix you describe would make a good solid rocket fuel.   And it's rather similar to thermite, a mixture of aluminium powder and iron oxide which burns with a very hot flame and used to be used for welding railway lines.
972611
Aluminum for one thing...it's mainly what the plane is comprised of...aircraft aluminum piping and aircraft aluminum sheeting...there's also plastics and steel that comprise the cabin compartment and the engine, along with rubber for the tires and glass for the windows, not to mention the chemicals the airplane uses...
661110
Synthetic rubber comprises the polymerisation of a variety of monomers to produce polymers. These form part of a broad study covered by Polymer science and Rubber technology.\n\nThe major commercial source of natural latex used to create rubber is the Para rubber tree, Hevea brasiliensis (Euphorbiaceae). This is largely because it responds to wounding by producing more latex\nIn places like Kerala(in India), where coconuts are in abundance, the shell of half a coconut is used as the collection container for the latex. The shells are attached to the tree via a short sharp stick and the latex drips down into it overnight. This usually produces latex up to a level of half to three quarters of the shell. The latex from multiple trees is then poured into flat pans, and this is mixed with formic acid, which serves as a coagulant. After a few hours, the very wet sheets of rubber are wrung out by putting them through a press before they are sent onto factories where vulcanization and further processing is done.\n\nAside from a few natural product impurities, natural rubber is essentially a polymer of isoprene units, a hydrocarbon diene monomer. Synthetic rubber can be made as a polymer of isoprene or various other monomers.
46415
simple.Elastic is made from rubber.
484947
Please check out this web site-it should be very helpful:\n\nhttp://www.maxxis.com/Services/how_a_tire_is_made.asp
595956
I know they had some flying toys as kids - i.e. rubber band helicopter sort of things. Also it was sort of a craze at the time, google early aviation history or equivilent and you should be able to find some videos and other info.