what is quantum theory???
Answers
Quantum Theory: a theory in physics based on the concept of the subdivision of radiant energy into finite quanta and applied to numerous processes involving transference or transformation of energy in an atomic or molecular scale.
Answer:
Time travel is a dream for many of us.
Time travel is science fiction, but Ronald Mallett, professor emeritus of physics at the University of Connecticut, is convinced that one day we will be able to travel in time. As a theoretical physicist, he specializes in Einstein’s general theory of relativity and focuses on black holes, the Big Bang Theory, and time travel.
In a video interview with EE Times Europe, Mallet explained what time means and how time travel might one day be possible.
“Time is connected with duration,” said Mallett. “It’s the persistence of existence; it has to persist in order to exist.”
Einstein said there are ways that time can be altered,” Mallett continued. “I have to understand Einstein, because if I understand Einstein, then I might be able to figure out how time can be altered.”
“If gravity can affect time, and light can create gravity, then light can affect time. That is the core of my work.”
A ring laser creates a circulating beam of light, like a mirror square on each corner, and bounces the light off each mirror. By solving Einstein’s equations of the gravitational field, Professor Mallet has studied the behavior of space and time in the region of the circulating beam of light.
“What I found is that two different things happened: A circulating beam of light actually causes a twisting of empty space,” Mallett said. “The way you can think about this is: Let’s say you have a cup of coffee, you think that the coffee is like empty space, and you think that your spoon is like the circulating beam of light. If you stir the coffee, the coffee starts to swirl around, that’s what the circulating beam of light is doing to empty space, it’s making it swirl around.”
Space and time are connected in Einstein’s theory.
Imagine you have a piece of paper and you draw a straight line on it. Imagine that you put the past in the middle of the paper, the present at the top of the line and then in opposite point the future. Now, I could twist the space of this line into a loop: I could move along that curve to the present, continuing along that curve to the future. So, by twisting the space, I can twist the links in a loop. And this loop in time can allow me to go back in the path. The circulating beam of laser light could actually cause a twisting of space at that point and thus a twisting of time,” said Mallet.
Here comes the possibility of a laser-driven time machine.
Explanation:
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