Metal Rod facts

While investigating facts about Metal Rod In Leg Side Effects and Metal Rod In Leg Causing Pain, I found out little known, but curios details like:

After Beethoven went deaf, he found he could affix a metal rod to his piano and bite down on it while he played, enabling him to hear perfectly through vibrations in his jawbone. The process is called bone conduction.

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After Ludwig van Beethoven went deaf, he found he could attach a metal rod to his piano and play while biting on it: this enabled him to hear through vibrations in his jawbone. This process is called bone conduction

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In my opinion, it is useful to put together a list of the most interesting details from trusted sources that I've come across answering what is the best welding rod for rusty metal. Here are 21 of the best facts about Metal Rods For Sale and Metal Rods Home Depot I managed to collect.

what's metal rod?

1. The ADE 651; an inert rod of metal with a plastic hinge, was sold as a bomb detector. It was used by the militaries of Iraq, Afghanistan and more than a dozen other countries for years before anyone noticed that it did nothing at all.

2. There's a 12-foot-tall replica of the Washington Monument hidden under a manhole on the grounds of the monument. Its purpose is that of a surveying tool that's usually just a metal rod, but because of the location this special version was installed.

3. The first TV remote controls were called "clickers" and did not use batteries, they transmitted an ultrasound when the user clicked the button, striking a metal rod inside to send an audible signal to the TV

4. One reason that you so often see people holding fans in ancient Japanese paintings/art is because the fan was a common self defense weapon. It had a metal rod inside, and there is an entire martial art dedicated to fighting with the fan.

5. The act of Kinetic Bombardment (firing large metal rods from a satellite into the Earth's surface at terminal velocity as a weapon) remains legal

6. Beethoven overcame deafness by biting a metal rod attached to his piano to hear his work. It's called bone conduction, and can also be used to help divers talk and hear underwater, and is also used by elephants to communicate

7. Phineas Gage, a man who had a large metal rod go completely through his head and destroy his brain’s left frontal lobe. Miraculously he survived, and was able to recover his social skills over time although people noted changes to his personality, behavior, and memory.

8. At around 250 BC Eratosthenes measured the circumference of the earth using only a water well and a metal rod. He was accurate within a 15% margin.

9. Beethoven (nearly deaf) discovered bone conduction as a means to hear his piano by clenching a metal rod (attached to the piano) between his teeth.

Why does my welding rod stick to the metal?

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The Washington Monument is capped with 100 ounces (2.83kg) of aluminium as a lightning rod, but also because aluminium was a rare and valuable metal at the time - as valuable as silver.

It is "Battery Day" and the earliest known battery in recorded human history, known as the Baghdad Battery, can be traced back 2000 years ago created with a clay pot containing a metal tube and a metal rod. - source

There are a variety of piano types today including the grand piano, upright piano, specialized piano (toy piano - uses metal rods instead of strings), the electric piano, and the digital piano.

The Ottoman Turks were infamous for the Khazouk, a painful method of execution in which a hot metal rod was in-serted through the rectum; the person could live up to 2 days as the executioner would avoid puncturing the heart and bleeding would be minimized due to cauterizing of the wound

Phineas Gage who's head was impaled by a metal rod causing him to completely change his personality - source

When a rod of metal a is dipped in an aqueous?

The Washington Monument is topped with a pyramid of the most expensive material at the time of its construction, aluminum. Its purpose was to act as a lightning rod to protect the monument It was much more expensive than other metals because of the high energy cost it took to produce it.

How to cut metal rod?

If you stroke metal rods you can make them sing.

In the 1950s, President Obama's grandfather suffered severe mistreatment in British concentration camps. British soldiers forced pins into his fingernails and buttocks and squeezed his testicles between metal rods.

About "rods from god" - An orbital weapon system, first proposed during the cold war, where large, dense metal rods would be dropped from space to bombard targets with the destructive power of a tactical nuke but without the radiation.