字幕表 動画を再生する 英語字幕をプリント Hey, they say that a four year old kid asks, on average, 280 questions a day, and most of them start with wine. Why do cats purr? Why does it rain when you clouds float in the sky? Why don't you run out of the room when I'm asking 280 questions? Let's see whether you know all the answers. Physics and incredibly flexible backbones help cats always land on their feet, even when they're falling from impressive heights. After a kid, he figures out where the up and down on it twists his body to face downward. This movement is rather complicated, with a cat's front half of the body rotating differently from its rear half. The animal is small as light bones thick fur and spreads its body out while falling. All of this slows the fall down. If a bowl of cereal is your favorite thing for breakfast, you've probably noticed that cereal pieces in it tend to either clean to the signs of the dish or clump together. This'll phenomenon has to do with physics. Serial floating in her ball creates tiny dense in the milk surface. When two serial pieces meet their dense merge and you get intricately shaped lumps, which you then eat anyway. Stop signs have their unique eight sided shape to help drivers who see only the back of the sign understand that the oncoming traffic faces a stop sign. Plus, when the original signs weren't reflective, the Octagon shape prevented drivers from confusing the stop sign with any other at night. Wimbledon tennis balls are always stored at the same temperature of 68 F because otherwise it can influence the way the bounds. When the ball is warmer, gas molecules inside expand, making the ball bounce here. After the ball gets cool down, the molecule shrink, decreasing the balancing. This I know some people like that. The water feels colder than the air, even when they have the same temperature because of the difference in their density. The water is way dancer. That's why your body loses heat 25 times faster when you're in cold water than it would on land. Plus water is a perfect conductor. That's great. A transferring heat or cold your body. Michael Tilson Thomas is also a perfect conductor of the San Francisco Symphony. Sticky notes come off relatively easily because they're adhesive is spread out across the paper unevenly in small blobs. On Lee, some of these blobs touched the surface of whatever you've stuck the note on. That's why when you unstick a post it and attached it to something else, the blobs that haven't been used yet do their work. Until all the glue gets used or covered with dirt, it may seem chip bags have all that excess air inside to trick you into thinking they contain more crispy goodness than they actually do. In reality, though, all this airs needed to cushion the chips during shipping so that they don't get crushed. By the way, this air is an oxygen. It would turn the chips rancid all too fast. Producers use nitrogen instead because it preserves the chips. Freshness clouds are made up of tiny water droplets. With time, these droplets merge inside a cloud. It makes them grow and get heavier until they can't stay put anymore and fall toe worth his reign. Leather may look dull to the eye because it's covered with itsy bitsy scratches and scrapes, which scatter the light that hits the material. When you polish your leather shoes coating them in a layer of wax. You fill these tiny crevices pretty much like a road crew fills in potholes. The surface becomes more smooth, the rays of light bounce off it more evenly, and the leather look shiny. Early chewing gums were elastic because they contain natural rubber. Later, this ingredient was replaced by synthetic rubber, but the effect remained the same two on that one for a while. The kangaroo rant, which lives in extremely dry regions, doesn't need to drink water at all. These animals get enough liquid from the seeds they munch on. Kangaroo rats also don't sweat or pant like other animals, because it would lead to losing precious water contained in their bodies. Water is so great it cleaning stuff because it has triangular molecules made of 200 Adams and one oxygen atom H 20 Remember, Such molecules have a bit different charges on their opposite sides, Pretty much like magnets. The hydrogen side of the molecule is somewhat positive, and the oxygen and it's slightly negative. That's why water easily sticks to other molecules, including those that make up dirt. Famously, yellow banana start to glow, eerie blue under UV lights. This phenomenon is caused by the chlorophyll breaking down. This process starts as soon as the fruit begins to ripen. Your car might have a tiny coffee cup sign on its dashboard. That's the vehicle's anti drowsiness mechanism. Some manufacturers equip their cars with a drowsiness detection system that analyzes the speed wheel angle and laying deviations. When it's time for the driver to take a break, the vehicle makes several audio signals, and the coffee cup signs starts to flash. Milk and sugar are not included. A few people know cats purr not only when they're happy, purring can mean your kid. He's hungry, frightened or even injured in this case, it pers to shoot itself in a stressful situation. Scientists aren't 100% sure why eyes is so slippery. Some experts claim that the extreme slipperiness is probably caused by a tiny layer of water that appears on solid eyes when you step on it or apply some other pressure. Others argue that usually the pressure isn't great enough to make the ice melt. Plus a layer of spilled water can make your kitchen floor quite dangerous, but it still won't be a slipper. His eyes mystery unsolved. Most gas pump nozzles have a special breakaway device. On the other end of the hopes, if you pull on it with enough force, the whole thing will come off. This way. Gas stations can avoid gas leakage. The newest development is a magnetic drive pump. If a forgetful customer tears it off, the hose can be easily reattached. Ever had your blender stop chopping food and just spend it around? In circles, you've probably skipped the pulse button. Other modes make all the ingredients move around in the same direction at the same speed. But the pulse function creates turbulence, and instead of rolling around fruit, fall into the center and turn into a smoothie. Clouds. Artist. Fluffy and light, as they say, one small cloud can weigh as much as three single story houses. But then, how did they float in the sky? Well, clouds are made of water particles that are so tiny and spread out that gravitation has almost no effect on them. Hence the floating illusion Barcodes air used to speed up the purchasing process. If a barcode consists of 12 digits, the one on the very left is a system identify WR for example, to means it's a randomly wade item, and three is used for products relating to help. The next five digits identify the manufacturer, and the following five are the products number. The last one is a check digit scanners needed to make sure they've read the code correctly. It takes your dog so long to decide where it wants to do its business, because just anyplace won't do. After a two year long study, scientists have concluded that pooches prefer to relieve themselves while facing north in places with a calm magnetic field. Who would have thought those embarrassing situations when your stomach growls at the most inappropriate times are created by your brain. That trader. When you're hungry, your brain feels it and send signals to your digestive system. Its muscles start to contract, getting ready to process food. That's when people around here those embarrassingly loud sounds, and that's when you just stare at the person next to you, shifting the blame. Finally, glass breaks too easily to my liking because its atoms are arranged rather loosely and randomly. They can't rearrange themselves fast enough to maintain the glass structure. As a result, glass doesn't bend it shatters just like my dreams. Just kidding. Hey, if you learn something new today, then give the video alike and share it with a friend. And here's some other videos I think you'll enjoy. Just click to the left or right, and remember, stay on the bright side of life.