Explain how does the rotation of the Earth makes a body weigh more at the poles than at the equator. Weight at the Surface of the Earth The gravitational force at the surface of the Earth is equal to the weight. This force pulls us down to the surfa...
GENERAL DRAYSON'S book on the Motion of the Fixed Stars is not a model of lucidity and generally fails to convince those who endeavour to grasp its argument. It was, therefore, most desirable that in selecting a commentator and literary executor the choice should fall on one who possessed th...
Explain that the Earth makes a rotation around its axis every 24 hours and that this makes day and night. Students must understand that part of the planet is facing the sun, making it daylight, while the other part of the world faces away from the sun, making it night. If necessary, u...
Why are hours of daylight equal to all around the world on the two equinoxes? Explain how does the rotation of the Earth makes a body weigh more at the poles than at the equator. Why do clocks not keep the correct time in summer and winte...
The most remarkable feature of the ultraviolet auroras at Jupiter is the ever present and almost continuous curtain of bright emissions centered on each magnetic pole and called the main emissions. According to the classical theory, it results from an electric current loop transferring momentum from ...
Judging from the amount of coal found in the world, the earth before the Flood supported about eight to ten times more plants and trees than today. The Flood uprooted the vegetation and formed vast floating log mats similar to those found on Spirit Lake, north of Mount St. Helens, ...
waveforms prone to cycle skipping before calculating the cross-correlation and a time-independent criterion for the comparison of the maximum and the second largest peak (sidelobe maximum, CCslm, corresponding to the largest positive value of the cross-correlation function in the case of anti-...
Earthquake nests are volumes of the Earth characterised by high, persistent and spatially isolated seismic activity58. The Bucaramanga nest, Colombia, is the most dense seismic nest on Earth59. There, an average of 8 events per year (with body wave magnitudes larger than mb 4.7)60within a com...
Dark matter can explain why stars move as they do. Dark matter may also explain the rotation speed of galaxies. “Even though we can calculate how much dark matter there is in the universe, we still know little about what dark matter is. The particles in dark matter must either have a ...
The researchers say their results could help explain Uranus’ and Neptune’s magnetic fields, which are unusual in that they do not run quasi-parallel and symmetrically to the axis of the planets’ rotation (as Earth’s magnetic field does). Instead, the magnetic fields of the ice gia...