adbcabcdbaadaa,5,If the earth is aball,why don’It we fall off?The reason (理由)is 1 there is gravity(引力).Gravity is 2 strange force(力).When you slip(滑倒) on something,you never 3 into the air ,but instead,you always fall 4 the ground.Things fall to the earth ...
Why are things heavy? The Higgs Boson might have aWhy are things heavy The Higgs Boson might have aTotse Com
Newton's original thought experiment describing the parallels between falling and orbiting. The faster an object moves sideways the longer it stays aloft. Fast enough, and it never hits the ground at all. Whether gravity pulls an object into orbit or just “makes it fall” depends on how...
内容摘录As we pored over hundreds of sticky ideas, we saw, over and over, the same six principles at work.当我们仔细研究了数以百计的粘性想法时,我们一次又一次地看到同样的六个原则在发挥作用。PRINCIPLE 1: SIMPLICITY原则1:简单性PRINCIPLE 2: UNEXPECTEDNESS原则2:意外性PRINCIPLE 3: CONCRETENESS原则3...
Every couple of years, an additional second is inserted into earth’s official time—but scientists have decided it’s too much of a headache to keep.
Icing sugar is one way to sugarcoat things – sprinkling your cake with powdered sugar is one of the simplest hacks. But if you’re worried that your cake is already too sweet, try masking the eggy taste with fresh fruit toppings – berries are always a great addition and also offer a ...
Initially, the only way I could see how to do that was to do what’s always been done: to charge an arm and a leg for my courses. We all know that when you have skin in the game, you’re a lot more likely to follow through, right? But what if you don’t have any skin to...
‘Switching off’ gravity would be like letting go of the string. Things not attached to the Earth would fly off in a straight line. People in buildings would suddenly shoot upwards at a great speed until they hit the ceiling. Most things outside would fly off into space....
Did you know that every day you do a shrinking act? You aren't as tall at the end of the day as you are at the beginning. That's because as the day goes on, water in the disks of the spine gets compressed (squeezed) due to gravity, making you just a tiny bit shorter. Don't...
Best Bad Choice. The best bad choice crisis is easy to understand. Just think of that game “would you rather.” You're given a choice between twohorriblethings. Which do you choose? For example, would you rather leave the love of your life at a party with another guy, or let her ...