Category: Physics

Can you filter oil out of water? Researchers have developed a special filter coating that essentially can strain oil out of water. It works by repelling oil, but attracting water, which are unconventional properties for a material to have. What happens when you mix oil and water detergent? Detergent grabs onto both types of molecules […]

Which element has more protons than neutrons? protium Can you have less neutrons than protons? Only two stable nuclides have fewer neutrons than protons: hydrogen-1 and helium-3. What has 7 protons and 7 neutrons? Nitrogen What has 7 protons and 10 neutrons? Subatomic Particles A B What is the atomic number of an element with […]

How does a DC contactor work? The Basics of DC Contactors The contactor functions by applying a voltage to the coil, this creates a magnetic field which moves the contacts to the closed position and completes the circuit. Once voltage is removed from the coil, the contacts will open back up and disconnect the circuit. […]

Are pilots in high demand? Age-based retirement and fleet growth were, and are expected to remain, the main drivers of pilot demand.” CAE predicts the civil aviation industry will require a total of 484,000 pilots in 2029: an estimated 426,000 for airlines and another 58,000 business jet crews. Do airlines prefer military pilots? Airlines preferred […]

What are the energy demands of soccer? Aerobic energy production appears to account for more than 90% of total energy consumption. Nevertheless, anaerobic energy production plays an essential role during soccer matches. During intensive exercise periods of a game, creatine phosphate, and to a lesser extent the stored adenosine triphosphate, are utilized. What qualities do […]

Can you fall off the moon? Although you can jump very high on the moon, you’ll be happy to know that there’s no need to worry about jumping all the way off into space. In fact, you’d need to be going very fast – more than 2 kilometres per second – to escape from the […]

What are the 3 types of population density? Population density is often measured in three different ways. There is arithmetic density, physiological density, and agricultural density. What are 3 types of population distribution? Individuals of a population can be distributed in one of three basic patterns: they can be more or less equally spaced apart […]

Is high salinity bad? If the level of salts in the soil water is too high, water may flow from the plant roots back into the soil. This results in dehydration of the plant, causing yield decline or even death of the plant. Crop yield losses may occur even though the effects of salinity may […]

Why are Santa Ana winds so strong? Santa Ana Winds occur when air from a region of high pressure over the dry, desert region of the southwestern U.S. flows westward towards low pressure located off the California coast. This creates dry winds that flow east to west through the mountain passages in Southern California. How […]

Why do Chinese use fireworks? Firecrackers and fireworks are set off at the stroke of midnight to scare away evil spirits and celebrate the coming of the new year. The Lantern Festival: It marks the end of the celebration of Chinese New Year. People set off firecrackers and fireworks to ward off misfortune and bring […]