Appearance of the Moon (2): Does it “roll around”?
• Altitude of the tail of the Big Dipper • Sudden decompression, 5 miles up Thanks for the “Math Refresher” in Spanish • The Pressure of Sunliht • How is the instant the seasons change determined? • Operation of Ion Rockets • Physical Librations of the Moon • The De-Laval Nozzle • Why does the space shuttle rotate at take-off? • Cold Fusion • What if a Neutron Star hit the Sun?Why did the Moon appear Red? • Centrifuge for Whirling Astronauts • What Holds Galaxies Together? • View of Earth and Moon from Mars • Appearance of the Moon (1) • Appearance of the Moon (2): Does it “roll around”? • Altitude of the tail of the Big Dipper • Sudden decompression, 5 miles up • Do Negative Ions make you Feel Good? • Shape of the Earth’s Orbit • Questions about the Solar Corona: (1) Why don’t its particles separate by weight? (2) What accelerates the solar wind? • Why does the rising Sun look so big? • Drawing a Perpendicular Line in Rectangular Coordinates • Unequal Seasons • Is the Big Dipper visib