Why is hydrogen so special? Hydrogen is a colorless gas that is so much lighter than air that it can actually escape the gravitational pull of the earth and shoot off into space. Hydrogen is also the first element on the periodic table and has only on proton and one electron. Hydrogen does not have […]
How does distance from the ocean affect climate?
How does distance from the ocean affect climate? Distance from the sea – Oceans heat up and cool down much more slowly than land. This means that coastal locations tend to be cooler in summer and warmer in winter than places inland at the same latitude and altitude. Why are coastal areas more stable climates? […]
How do you explain pressure altitude?
How do you explain pressure altitude? Pressure altitude is the attitude displayed on the altimeter when the Kollsman window is set to 29.92 inches of mercury, or 1013.4 millibars. Pilots cannot use pressure altitude below 18,000 feet, because then the aircraft’s true altitude would change depending on temperature. Why do we calculate pressure altitude? Pressure […]
How do you find velocity before hitting the ground?
How long did it take for Hiroshima to be safe?
How long did it take for Hiroshima to be safe? At the city center near where the bomb exploded, only the skeletons of three concrete buildings were still standing. It was being said, he reported, that Hiroshima might remain uninhabitable for 75 years. Did the US help Japan after ww2? After the defeat of Japan […]
What are ferromagnetic and antiferromagnetic materials?
What are ferromagnetic and antiferromagnetic materials? Ferromagnetic materials have magnetic moments that align parallel to the applied magnetic field whereas antiferromagnetic materials have antiparallel magnetic moments. Therefore the magnetic moments still cancel each other out and the overall magnetization is zero. What is hysteresis loop explain with diagram? A hysteresis loop shows the relationship between […]
What is the 80/20 rule for losing weight?
What is the 80/20 rule for losing weight? What is the 80/20 diet? In “The 80/20 Diet,” Australian nutritionist, chef, and personal trainer Teresa Cutter writes that you can lose weight if you eat nutritiously 80 percent of the time and allow yourself to indulge in less healthy food for the remaining 20 percent of […]
What is the formula for input work?
Why does massless light bend near a large mass?
Why does massless light bend near a large mass? Light can form a curve if it travels near a big mass. You are right, photons don’t have mass. You are also right, photons doesn’t follow Newton’s gravitation law. Photons can be pulled by gravity not because of their mass (they have none) but because gravity […]
What is eruption of volcano?
What is eruption of volcano? Definition: A volcanic eruption occurs when magma is released from a volcano. Volcanic eruptions can be quite calm and effusive, or they can be explosive. Effusive eruptions produce lava flows, while explosive eruptions produce ash and pyroclastic density currents. Volcanic Eruption. What is a volcano short answer? A volcano is […]