(Encyclopedia) Galilei, VincenzoGalilei, Vincenzovēnchĕnˈtsō gälēlĕˈē [key], d. 1591, Italian lutenist, singer, writer, and composer; father of Galileo. As a member of the Florentine camerata (see…
(Encyclopedia) Galileo (Galileo Galilei)Galileogălˌĭlēˈō; gälēlĕˈō gälēlĕˈē [key], 1564–1642, great Italian astronomer, mathematician, and physicist. By his persistent investigation of natural laws…
(Encyclopedia) Ferraris, GalileoFerraris, Galileogälēlāˈō fār-räˈrēs [key], 1847–97, Italian physicist and electrical engineer. He is noted for his work on alternating current and for his discovery (…
Eratosthenes 276–195 B.C. This Greek astronomer was the first to measure the size of Earth accurately. He determined that the earth's polar diameter was about 7,850 miles. (In fact, the distance is…
The Search for Life in the Solar System by Tim Porter While generations of cloned mice and asteroids the size of Texas dominate science in popular culture today, a NASA probe is quietly…
Source: National Institute of Standards and Technology Physics Laboratory In Europe during most of the Middle Ages (roughly 500 to 1500 A.D.), technological advancement was at a virtual standstill…
WHEN DID PEOPLE FIRST STUDY THE SKY? WHAT DO ASTRONOMERS STUDY TODAY? TELESCOPESFIND OUT MOREAstronomy is the science that studies the stars and all the other bodies (objects) in space. The…
Why Do Some Objects Fall Faster Than Others?Science Projects for BeginnersPhysical ScienceWhy Do Some Objects Fall Faster Than Others?Do Objects Float Better in Salt Water Than in Fresh Water?…
WHAT ARE THE GALILEAN MOONS? FIND OUT MOREThe biggest planet, Jupiter, is 11 times wider than Earth. It is made mainly of hydrogen and helium. Its rapid spin makes the clouds in its atmosphere form…
Pocahontas (c. 1595–1617) The Library of Congress Picture Collection Galileo (1564–1642) Johannes Kepler (1571–1630) Taj Mahal The Library of Congress Picture Collection…
