How does NASA get rid of asteroids? When the asteroid is still far from the Earth, a means of deflecting the asteroid is to directly alter its momentum by colliding a spacecraft with the asteroid. The principle of the kinetic impactor mitigation method is that the NEO or Asteroid is deflected following an impact from […]
What are the basic steps in transforming sound waves?
What are the basic steps in transforming sound waves? The outer ear collects sound waves, which are translated into mechanical waves by the middle ear and turned into waves in the inner ear. The auditory nerve then translate the energy into electrical waves and sends them to the brain, which perceives and interprets the sound. […]
Why is boron an exception?
Why is boron an exception? The problem with this structure is that boron has an incomplete octet; it only has six electrons around it. Hydrogen atoms can naturally only have only 2 electrons in their outermost shell (their version of an octet), and as such there are no spare electrons to form a double bond […]
What is the thinnest and coldest layer of the earth?
What is the thinnest and coldest layer of the earth? Earth’s Layers Earth Layers: CRUST- The crust is the thinnest layer. – made of rock. – hard and rigid. – coldest layer. – outermost layer – it’s the land that we stand on everyday. Is the asthenosphere the thinnest layer? “The Earth can be divided […]
What is positive and negative temperature coefficient?
What is positive and negative temperature coefficient? A positive coefficient for a material means that its resistance increases with an increase in temperature. A negative coefficient for a material means that its resistance decreases with an increase in temperature. What are the applications of P and N-type semiconductors? Diode is a combination of n-type and […]
Do electric showers work without gas?
Do electric showers work without gas? You can use an electric shower regardless of the type of boiler or heating system you have, because it runs separately. Another great bonus of this is that you will still have access to hot water if your boiler breaks down. What showers are cheaper running? The electric shower […]
What is the fastest walking speed?
What is the fastest walking speed? In 2017, British Olympian Tom Bosworth broke a world record when he race-walked 1 mile in a speedy 5 minutes and 31 seconds. Amazing, right? But as you might imagine, Olympic race-walkers move much faster than most people. What pace is 3 mph? Popular Road Race Distances mph 1km […]
Do dreams really mean anything Psychology Today?
Do dreams really mean anything Psychology Today? The theory states that dreams don’t actually mean anything. Instead they’re merely electrical brain impulses that pull random thoughts and imagery from our memories. However, renowned psychologist Sigmund Freud thought otherwise. He believed that dreams revealed unconsciously repressed conflicts or wishes. Are your dreams telling you something? Dreams […]
Is carbon dioxide is not an air pollutant?
Is carbon dioxide is not an air pollutant? Summary: Rising carbon dioxide levels from burning fossil fuels have been linked to sea level changes, snowmelt, disease, heat stress, severe weather, and ocean acidification. Yet because it does not affect respiration directly, carbon dioxide is not considered a classic air pollutant. What atmosphere will have the […]
Why is streak more reliable for mineral identification?
Why is streak more reliable for mineral identification? Streak is the color of a mineral’s powder. Streak is a more reliable property than color because streak does not vary. Minerals that are the same color may have a different colored streak. To check streak, scrape the mineral across an unglazed porcelain plate (Figure 5). Why […]