How does energy flow through the earth? Energy is transferred from the sun to Earth via electromagnetic waves, or radiation. Most of the energy that passes through the upper atmosphere and reaches Earth’s surface is in two forms, visible and infrared light. This transfer of energy can take place by three processes: radiation, conduction, and […]
What month is best to see the northern lights?
What month is best to see the northern lights? But here’s the good news: The time is right to get a glimpse of the aurora borealis. Thanks to longer hours of darkness and clear night skies, December through March is usually the best time to observe this elusive natural phenomenon (though you can sometimes see […]
Where does blue pigment come from?
Where does blue pigment come from? Blue pigments were originally made from minerals such as lapis lazuli, cobalt and azurite, and blue dyes were made from plants; usually woad in Europe, and Indigofera tinctoria, or true indigo, in Asia and Africa. Today most blue pigments and dyes are made by a chemical process. What is […]
What is the best filter for landscape photography?
What is the best filter for landscape photography? The most common solid ND filters used in landscape photography are the 3-stop, 6-stop and 10-stop. A 3-stop ND filter is often used to create a realistic sense of motion, while the 6-stop and 10-stop filters may be used for longer exposures from 30 seconds to several […]
What is force * time?
What is force * time? The impulse experienced by an object is the force•time. The momentum change of an object is the mass•velocity change. The impulse equals the momentum change. What’s force multiplied by time? Impulse, or change in momentum, equals the average net external force multiplied by the time this force acts: Δp = […]
Is there any way to see sound waves?
What objects would have the smallest wavelength at the same velocity?
What objects would have the smallest wavelength at the same velocity? Bowling Ball. The de Broglie wavelength of matter is proportional to Planck’s constant and inversely proportional to the momentum of the particle. If all the objects had the same velocity, this one would have the smallest wavelength because its momentum would be smallest. What […]
Which adaptations would you expect to see in plants growing in the tundra?
Which adaptations would you expect to see in plants growing in the tundra? Plants also have adapted to the Arctic tundra by developing the ability to grow under a layer of snow, to carry out photosynthesis in extremely cold temperatures, and for flowering plants, to produce flowers quickly once summer begins. A small leaf structure […]
What does it mean to violate the second law of thermodynamics?
What does it mean to violate the second law of thermodynamics? Researchers have shown for the first time that, on the level of thousands of atoms and molecules, fleeting energy increases violate the second law of thermodynamics1. This is the tenet that some energy will always be lost when converting from one type to another. […]
Do coma patients remember anything?
Do coma patients remember anything? Some people feel they can remember events that happened around them while they were in a coma, while others don’t. Some people have reported feeling enormous reassurance from the presence of a loved one when coming out of a coma. Can you feel pain in a coma? People in a […]