WHAT DO PHYSICISTS STUDY? WHAT ARE PHYSICAL PROPERTIES? HOW DO PHYSICISTS WORK? BIOGRAPHY: SIR ISAAC NEWTON English, 1642–1727 EQUATIONS APPLIED PHYSICS FIND OUT MORE
Physics is the…
MOLTEN METALICEBERGTEMPERATURETHERMOMETERFIND OUT MOREMetal heated in a furnace shows that it is hot by glowing red and sending out sparks – but there is also some heat in ice and snow. Heat is…
WHAT CAUSES EARTHQUAKES? WHAT HAPPENS DURING AN EARTHQUAKE? WHERE DO MOST EARTHQUAKES STRIKE? HOW ARE EARTHQUAKES MEASURED? FIND OUT MOREEarthquakes are vibrations triggered by sudden rock…
DECIBEL SCALEROCK MUSICNOISE CANCELLINGFIND OUT MORESome sounds are so loud they are painful to our ears; others are so quiet they may be hard to hear at all. Things that vibrate a lot, such as…
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bit: The word "bit" is short for "binary digit." A bit is the smallest piece of computer information. byte: Most computers use combinations of eight bits, called bytes, to represent one…
(Encyclopedia) astrolabeastrolabeăsˈtrəlāb [key], instrument probably used originally for measuring the altitudes of heavenly bodies and for determining their positions and movements. Although its…
(Encyclopedia) tobogganing, sport of coasting down snowy hillsides or chutes on a toboggan, a flat-bottomed vehicle made of hard wood. The toboggan, typically measuring 1.5 ft by 6–8 ft (.46 m by 1.8…
(Encyclopedia) scintillation counter, device for detecting and measuring radiation by means of tiny visible flashes produced by the radiation when it strikes a sensitive substance known as a phosphor…
