How many lengths does a car have? Figure one car length for every ten miles an hour,” Barndt said. “So if you’re doing 55 miles an hour you should have six car lengths between you so that if something happens to the car in front of you, you have time to stop or react.” The […]
Can the Great Wall of China be seen from space?
Can the Great Wall of China be seen from space? The Great Wall of China, frequently billed as the only man-made object visible from space, generally isn’t, at least to the unaided eye in low Earth orbit. It certainly isn’t visible from the Moon. You can, though, see a lot of other results of human […]
What was soccer first?
What was soccer first? association football What came first football or soccer? To most of the rest of the world, (including England, the birthplace of the modern sport,) it’s football. But what most people don’t know is that the word “soccer” is not in fact an American invention. On the contrary, it was an import […]
Who found atom first?
Who found atom first? Democritus Why can’t scientists see inside an atom? Almost all of an atom’s mass comes from the protons and neutrons in the nucleus. However, because electrons orbit around the nucleus, most of an atom is empty space! You can’t see atoms with the naked eye, because they’re simply too small. Using […]
What controls how much sediment a river can carry?
What controls how much sediment a river can carry? The two main flow factors in sediment transport are the settling rate and the boundary layer shear stress 27. What property of flowing water determines how much sediment it can carry? Sediments carried as solids as the stream flows are called a suspended load. The size […]
Is it possible for a solid metal ball to float in mercury?
Is solid light possible?
Is solid light possible? Solid light, often referred to in media as “hard light” or “hard-light”, is a hypothetical material, made of light in a solidified state. It has been theorized that this could exist, and experiments claim to have created solid photonic matter or molecules by inducing strong interaction between photons. Can we produce […]
How many tons of coal are in one train car?
How many tons of coal are in one train car? 120 tons What is a railroad dump? Center Dump Car. A car which will discharge its entire load between the rails. How are hopper cars unloaded? Hoppers are used to haul bulk freight such as coal, gravel, and grain; they have either several discharge hatches […]
How do emotions affect financial decisions?
How do emotions affect financial decisions? When your anger is at its peak, you’re more likely to make rash financial decisions. You can even compare this to angry casino players on a losing streak. In their anger and frustration, they lose even more money in a bid to recover what they’ve gambled away. What emotions […]
How long are muscle fibers?
How long are muscle fibers? Muscle fibers are typically large cells, some 20–100 μm in diameter and many centimeters long, with the longest fibers being about 12 cm. These cells are multinucleated, because they need many nuclei to govern protein synthesis and degradation. Does drinking water make muscles look bigger? This surge of fluids causes […]