Earplugs are used for many things but don’t block those facts!
- Earplugs help protect from loud noises, hearing loss, tinnitus, water coming into the ears, dust or wind.
- Wearing earplugs while diving is bad since the water and air will pressure your ears.
- Earplugs can be made out of wax, silicone and memory foam.
- To insert foam earplugs into your ears you have to roll the earplug into a thin rod and pull back on your ear. Then gently push the plug deep into the ear canal and wait 20 seconds.
- The first recorded use of earplugs was in Ancient Greece when Odysseus’ crew, used the plugs to block out the sound of the Siren’s songs.
- Ross Gardner discovered modern earplug material, a type of foam, in 1967.
- Musicians wear flanged earplugs in their ears during their loud performances.
- Earplugs that are designed to prevent snoring may have parts of the plug that reduces the volume of the snoring so you cans still hear louder sounds.
- Earplugs must be used carefully otherwise they could do serious damage. This damage can be the result of pressure of the air or water pushing on your ear or earwax and other grit in your ear that is pushing on your eardrum.
- Special earplugs for flying are available. They help to reduce pain associated with flying by equalising air pressure in the ear.
Earplug 17 October 2012, Wikipedia, <http://en.wikipedia.org/wiki/Earplug>
One of the most popular inventions is the stove, what would the world do without them? Well we need to know about them, what would the world do without facts!
- A stove is an enclosed structure that uses fire or electricity which can be used to heat up the house or to cook.
- The original meaning of the word ‘stove’ actually meant ‘a heated room’.
- There are many stove models that have been invented. The four main stove designs are the wood stove, which burns wood, the coal stove which burns coal and wood, the electric stove which runs on electricity and the enclosed stove which is enclosed versions of the models above.
- Wood and coal burning stoves pollute the air by giving off lots of smoke and gas.
- The benefit of stoves is that it is easier to control the heat, than an open fire.
- In 1735, Françios Cuvillés invented the first completely enclosed stove.
- Metal stoves were invented in the 18th century and electric stoves were invented in the late 19th century.
- The first fully enclosed metal cooking stove was invented in the 19th century but was too large to fit in a normal house.
- A corn pellet generates the same heat in a stove as wood pellets.
- In the United States, the maximum amount of smoke allowed to be let off from stoves is 7.5 grams per hour.
Stove 14 October 2012, Wikipedia, <http://en.wikipedia.org/wiki/Stove>