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Which came first - rubber or the eraser?
Rubber would have come first as an eraser is made out of rubber. People used pieces of bread to erase mistakes long before they figured out that a piece of rubber would do the trick. Ancient Greeks and Romans had been using flat pieces of lead to draw on papyrus. By the 1400s, graphite had been discovered and, around a century later, the modern pencil began to take shape. Though the milky liquid that was produced by trees in tropical areas had been discovered centuries ago, it was only in the eighteenth century, that the substance "caoutchouc," which was used to create natural rubber, made its way to Europe. Sometime around 1750, it was suggested that the substance be used as an eraser. It was the scientist Joseph Priestley who proposed that the name of the substance be changed to "rubber," because it was used to rub pencil marks away.
How long have simple machines been around?
200 years
How long have robots been around?
Since about the late 1900 (circa 1950)
How long does rubber cement take to dry?
Rubber cement can dry in 15 minutes if it is not a very thick coat. If it is a thick coat, it will take longer.
Who was the creator of rubber?
Rubber, as a natural substance, was first utilized by indigenous peoples of the Americas long before European contact. However, Charles Goodyear is credited with the invention of the vulcanization process in 1844, which made rubber more durable and versatile for various applications. This process revolutionized the rubber industry and laid the foundation for modern rubber products.
Will wrapping rubber bands around your penis make it larger?
Only while the rubber bands are on it. Keeps the blood in and over inflates it. Do this too long or too tight and you can injure yourself.
How are silly bands made?
Rubber bands are made by extruding the rubber into a long tube to provide its general shape, putting the tubes on mandrels, curing the rubber with heat, and then slicing it across the width of the tube into little bands.
How long do rubber bands sit in the mold before they come out?
for 13 hours
What are some disadvantages to rubber bands?
Rubber bands can degrade over time, losing their elasticity and becoming brittle. They can break easily if stretched beyond their limits. Rubber bands can also cause allergic reactions in some individuals.
What makes rubber bands stretchy?
Rubber bands are made of polymer chains that have the ability to stretch and return to their original shape due to their flexible molecular structure. The long chains of molecules allow the rubber band to stretch and contract while maintaining its elasticity.
How long is a one pound rubber band chain?
You really can't know that without knowing the type of rubber bands involved, how much each of them weighs, and how long each of them is.
How do you make a tie dye shirt with stripes?
first get a clean solid white tee. next twist it. it should be long and skinny. wrap rubber bands along the shirt. if you want thicker strips, put less rubber bands. if you want thinner strips, put more. squirt the dye on the shirt where the rubber bands are not there. let it dry. wash it. and wear it! :)
What are the benefits of using permanent rubber bands for securing items?
Using permanent rubber bands for securing items offers several benefits, including durability, flexibility, and reusability. These bands are long-lasting and can withstand repeated use without losing their elasticity. They are also versatile and can be used for a variety of purposes. Additionally, permanent rubber bands are eco-friendly as they can be reused multiple times, reducing the need for disposable alternatives.
Does the amount of stretch affect the distance a rubber band will travel what material do you need for that experiment?
Yes because you could stretch the rubber band long and it will go far but if you stretch short it will not go as far. the materials you need is rubber bands a tape measure or meter stick paper pencil
How much longer do you have to wear braces after you start using rubber bands?
usually the rubber bands are to correct overbites and therefore if the intensity of the bite is medium, it is kept in for just six to twelve months. Also if you wear two on each hook, it speeds up the pace I've been wearing my rubber bands for a month now...and they dont bother me that much. You'll probably have 2 wear them 1, 2, or 3 months....depends on your situation
How long does it take for rubber bands to decompose?
Rubber bands can take anywhere from 1 to 10 years to decompose, depending on environmental conditions such as exposure to sunlight, moisture, and temperature. Natural latex rubber bands may break down faster than synthetic ones, which can take much longer due to their chemical composition. Proper disposal methods, like recycling, can help reduce their environmental impact.
What is in RC airplane fuel?
rubber bands for small ones, electricity for medium ones, and gas for the big 5 foot long ones
