根据文章第一段"Scientistshaveforthefirsttimeobservedripplesinthefabricofspacetime(时空涟漪)calledgravitationalwaves,arrivingattheearthfromaseverelydestructiveeventinthedistantuniverse"可知引力波会干扰时间和空间;故选A, 点评 考察学生的细节理解和推理判断能力,做细节理解题时一定要找到文章中的原句,和题干进行比较,...
General relativity is a physical theory about space and time and it has a beautiful mathematical description. According to general relativity, the spacetime is a 4-dimensional object that has to obey an equation, called the Einstein equation, which explains how the matter curves the spacetime. Wh...
What is gravitational waves (引力波)?Scientists have for the first time observed ripples in the fabric of space time (时空涟漪) called gravitational waves,arriving at the earth from a severely destructive event in the distant universe.It confirms a major prediction of Albert Einstein's 1915...
The dominating form of energy in the cosmos dark energy is driving the accelerating expansion of the universe, but its nature remains a mystery.
The dominating form of energy in the cosmos dark energy is driving the accelerating expansion of the universe, but its nature remains a mystery.
Space + Time = Spacetime “Time is adimension, just like space, that we exist in. But the difference to space is that we can’t step right and left, we can onlygo in one direction,” said Professor Astrid Eichorn of the University of Southern Denmark in a recentinterview with timeand...
Gravity is more of an effect rather than a force. Massive objects bend space/time and create dips (think about pushing one finger down on a stretched piece of fabric, where your finger represents the sun and the fabric is spacetime (ha! funny isn't it?). Other less-massive objects get...
It is just emptiness, after all—a backdrop to everything else. Time, likewise, simply ticks on incessantly. But if physicists have learned anything from the long slog to unify their theories, it is that space and time form a system of such staggering complexity that it may defy our most...
We may be on the threshold of some serious answers to how physics is all connected. But first, we need to do some testing and find out our viable options.
Why Is The Speed Of Gravity Equal To The Speed Of Light? The speed of gravity is the speed of light, which is 186,000 miles per second. After computing the orbit of the only comet visible to the naked eye that might dart across the night sky twice in a lifetime, Edmond Halley grew...