TheSpeed of Light(SOL) is the ultimate speed limit in the Universe. Einstein taught us that the faster you go, the more of that energy becomes Mass (E=MC2), and as you approach SOL, the energy used to increase your speed becomes mass. The mass increases so much that it becomes infini...
It defines the amount of the Universe that we can see, because that’s how long light has taken to reach us since the Big Bang. This is a minimum value, the Universe could be much bigger – it’s just that we can’t ever detect those stars because they’re outside the observable U...
When we use up all the oil in the world, there will be no more. There is another reason for throwing less away. All of our trash has to be put somewhere. Often , it is put into garbage dumps (垃圾场). Much of that trash will be there for hundreds of years. The dumps will be...
Light-year:5.88 trillion miles Understanding Light-Years To help wrap our heads around how to use light-years, let’s look at how far things are away from the Earth starting with our closest neighbor, the Moon. The Moon is 1.3 light-seconds from the Earth. ...
It's important to realize how much our picture of the universe has changed in the last century. => 了解上个世纪我们对宇宙的描述是如何变化的,这一点很重要。 At the beginning of the wisdom in science was that the universe was static and eternal. ...
I respect my mother so much as she never treats me as a child, but as an equal. She gives me the freedom to make mistakes and to learn from them all. Unlike friendships that can fade or break, I know I'll always be connected to my mother no matter what I face. She is not ...
a我很期待我的未来 I will anticipate my future very much[translate] a不能很好的表达自己 Cannot very good express oneself[translate] aa plays tati on 3 is calling my name! 戏剧tati在3叫我的名字![translate] aThey are a long way away and their light has travelled for many years to reach ...
Get the ad-free experience for life And yet, those numbers don’t accurately reflect how much matter the universe may truly house. As stated already, this estimate accounts only for theobservable universewhich reaches 46 billion light years in any direction, and is based on where the expansion...
aBut scientists have discovered many other galaxies in the universe.They are a long way away and their light has travelled for many years to reach us.It is hard to understand how large the universe is. 正在翻译,请等待... [translate]