Now, the important question is what vibrates to make a sound. The air motes joggle as the sound moves through the air. In our voice box, oral cords joggle to produce the sound and the eardrum vibrates when the sound surge reaches it. Three effects joggle when sound is created the sour...
The energy released from the sun and the other stars is due to what?If energy can't be created or destroyed, where did it come from to form matter in the first place?Energy cannot be lost or created, so what happens to human life af...
Let'stakethe 'r' forexample, ifyourtongueisnotintherightplace, you'llinvestalotmoreenergythanneeded.让我们以“r”这个音为例，如果你的舌头不在正确的位置上，你就会投入更多的精力。Thetongueneedstobeinthatperfectplacetocreatethatnicetensestrongsound.舌头需要处在那个完美的位置，才能发出优美、紧张、有力...
Most of the hydrogen supply in the U.S. iscreated as a byproductof natural gas and petroleum refinement. The other reliable method of collecting hydrogen fuel is through electrolysis, which entails energizing fresh water and separating it into base components: hydrogen and oxygen. The downside to...
Sound is the energy things produce when they vibrate (move back and forth quickly).If you bang a drum, you make the tight skin vibrate at very high speed (it's so fast that you can't usually see it), forcing the air all around it to vibrate as well. As the air moves, it ...
This emitted energy is equal to the difference between the high and low energy levels, and may be seen as light depending on its wave frequency, discussed below. The wave form of light is actually a form of energy that is created by an oscillating charge. This charge consists of an ...
The thumping sound of the giant blades can be heard throughout Greece's hills, a sign that the country is adopting a green agenda and aiming to meet its climate goals. Hundreds of miles of underwater cables link Greece's mainland power stations to the country's popular...
There are special microphones that will record surround sound (by picking up sound in three or more directions), but this is not the standard way to produce a surround soundtrack. Almost all movie surround soundtracks are created in a mixing studio. Sound editors and mixers take a number of...
The climate is an important matter in our lives 气候问题相当重要 Flues and colds 流感和伤寒 That is what we call the greenhouse effect 这就是温室效应 This phenomenon can be explained by the fact that we overuse energy, and especially like the oil for example 这种现象归咎于人类的能源过度使用...
Kelly Milligan, managing partner at Quorum Private Wealth, explains how investors can distinguish alternative investments: "The easiest way to define 'alternative investments' may be to describe what they are not. They are not 'traditional investments' – that is – publicly traded stocks and public...