Physics

How fast do you hit the ground when skydiving? A stable belly-to-earth body position will usually result in a ‘terminal velocity’ (this being the fastest speed you’ll reach during freefall) of 120mph or 200kph. A stable head down position (falling upside with your head toward the ground and legs up) gets around 150-180mph (240-290kph). Read … Read more

At what speed do trees fall? Almost all tree trunks break, regardless of their size or species. Critical wind speeds, in which no tree can withstand punishment for any continuous length of time, is around 90 mph. The breaking phenomenon of critical wind speed is mostly independent of the tree’s diameter, height or elastic properties. … Read more

How long does one inch of water take to freeze? Read more on beezzly.com Outdoor pursuits like ice skating, ice fishing, and hockey on a backyard rink are fantastic in the winter. However, you need a thick layer of ice before you can engage in these activities. This article will provide guidance on flooding pond … Read more

Who is the pioneer of quantum mechanics? Niels Bohr and Max Planck, two of the founding fathers of Quantum Theory, each received a Nobel Prize in Physics for their work on quanta. Einstein is considered the third founder of Quantum Theory because he described light as quanta in his theory of the Photoelectric Effect, for … Read more

How fast does a paintball go in mph? But how fast are they really moving? The average paintball has a velocity of about 280 fps, or 190 mph, which is far slower than any regular gun. Read more on www.liveabout.com Many individuals all over the world like the game of paintball. Players fire tiny paintballs … Read more

How many pounds of Epsom salt does it take to float? Most tanks require about 800 lbs of Epsom Salt to allow subjects to be completely buoyant. Read more on www.sfbsc.com The pleasant and healing experience of floating is gaining popularity. People frequently utilize sensory deprivation chambers, also referred to as float tanks, to simulate … Read more

How thick is the ice on a hockey rink? Ice is approximately 3/4″” of an inch thick and is usually chilled at 16 degrees fahrenheit. The thicker the ice, the softer and slower it becomes. Read more on www.nhl.com Popular ice hockey games are held on rinks constructed from a variety of materials. The ice … Read more

Ice may form quickly when temperatures tumble, but it takes more time than you might think for ice to reach the four-inch thickness that experts recommend. On average, it takes four days of below freezing temperatures to form ice that is safe. Also, this guideline is for ponds and lakes. Read more on spectrumlocalnews.com When … Read more

How many balloons does it take to lift a person? If you weigh 50 kilograms (about 110 pounds), then you weigh 50,000 grams. Divide your 50,000 grams by the 14 grams per balloon and you find that you need 3,571.42 balloons to lift your weight. You might want to add 500 more if you actually … Read more

Why is 137 so important? To physicists, 137 is the approximate denominator of the fine-structure constant (1/137.03599913), the measure of the strength of the electromagnetic force that controls how charged elementary particles such as the electron and muon interact with photons of light, according to the National Institute of Standards and Read more on science.howstuffworks.com … Read more