What does the word "lodestone" mean?

Leading Stone
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Related trivia

Which insect can indicate the air temperature?
Cricket
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How many joules make one calorie?
4.184
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What is the wire that gives off light in a light bulb?
Filament
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Who discovered that a moving magnet generates electric current known as electromagnetic induction?
Michael Faraday
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Dimples on golf balls help increase speed by reducing what?
Drag
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Who was the first woman to win a Nobel Prize in Physics?
Maria Sklodowska-Curie
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To which part of physics does the Archimedes' Principle refer?
Buoyancy
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How many coulombs does one ampere-hour equal?
3,600 Coulombs
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What kind of electromagnetic radiation arises only from nuclear excitations?
Gamma Rays
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What would you use to measure the mass difference between two like objects?
Density
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What is the distance between two peaks of a wave called?
Wavelength
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What sort of electricity do you get when you rub two balloons and they stick together?
Static
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What are the component parts of a battery called?
Electric Cells
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What type of switch allows you to reset the circuit?
Circuit Breaker
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What is the scale used to measure tornadoes?
The Fujita Scale
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What is the term for the capacity of a body or system to do work?
Energy
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Who was the Clark University physicist responsible for "A Method of Reaching Extreme Altitudes"?
Robert Goddard
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A unit of electromotive force is called what?
Volt
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What measure is used to express reactance in conductors and capacitors?
Ohms
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What is the repeated sound when sound waves bounce off other objects called?
Echo
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What is the energy of moving parts called?
Mechanical Energy
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Which abbreviation refers to a term that literally means "below red"?
IR
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What is it called when a current skips part of the circuit?
Short Circuit
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How much would a 150-pound person weigh at the center of the earth?
Nothing
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