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How many degrees is a 6% grade? Slopes vs. gradients vs. % grades Slope Angle (degrees) Gradient Grade (%) 5 1 8.75 5.74 1 10 6 1 10.5 What is a 360 angle called? A 180° angle is called a straight angle. Angles such as 270 degrees which are more than 180 but less than […]

When a small stone is dropped into a pond of still water what happens? When that pebble is dropped in the pond, it pushes water out of the way. The water has nowhere to go but to the side and up, creating a circular peak around the drop point. This peak falls again, under the […]

What is Pascal law and its derivation? In the 1600’s, French scientist (Methematcian) Blaise Pascal (1623-1662) discovered one fact which is termed as Pascal’s Law. Pascal’s Law. According to Pascal’s Law, “Pressure or intensity of pressure at a point in a static. fluid will be equal in all directions”. What is Pascal’s law state its […]

What is called stereopsis? Stereopsis (from the Greek στερεο- stereo- meaning “solid”, and ὄψις opsis, “appearance, sight”) is a term that is most often used to refer to the perception of depth and 3-dimensional structure obtained on the basis of visual information deriving from two eyes by individuals with normally developed binocular vision. Why is […]

How many Ptolemies were there? fifteen Ptolemaic Who ruled Egypt after the Romans? The Late Period of Ancient Egyptian history came to an end in 332 BC when Egypt was conquered by the Greeks. The Greeks formed their own dynasty called the Ptolemaic Dynasty that ruled for nearly 300 years until 30 BC. In 30 […]

Is it possible to lose 20 kgs in 7 months? When Anshul Jangra was pointed out for her looks from a friend because she was chubbier than them, it sting her and she decided to lose weight and alter the way she looked. She started at 67 kilos and in about just half a year, […]

Do cameras reflect or refract light? Yes, cameras refract light. The refraction of light happens as it travels through the lens of the camera and creates a larger or smaller picture…. How do mirrors and lenses affect the path of light rays? Summary: How do lenses and mirrors affect light? Plane mirrors and convex mirrors […]

Is the ruler drop test valid? The ruler-drop test has acceptable test-retest reliability that compares favorably with computerized measures of reaction time. Which finger has the fastest reaction time? The fingers on the outside — i.e. the thumb and little finger — therefore react faster than the middle finger, which is exposed to the “cross […]

Can you touch your eardrum? And if you press on those, it sends shock waves into the inner ear, and the inner ear is responsible for hearing and balance. So if you tap on the eardrum, you’re sending shock waves into the inner ear and you can cause problems with your hearing and balance. Is […]

Why do roller coasters feel faster than cars? ELI5: why does going 60mph on a roller coaster feel so different than going 60mph in a car? Because 1) they’re open so you feel the wind and 2) they don’t go in long, straight lines. They go all over and throw you left, right, up, and […]