A broad definition says virtual reality is the idea of combining the physical world and the artificial world in such a way that the two are indistinguishable. How could technology provide all of the sensory sensations or different ways that people see, feel and hear the world such that the artificial and physical are blended together?
Archives: Blue Sky
How does the moon affect the tides?
The tides are the result of the moon exerting its gravitational force on the ocean and bulging it both toward and away from the moon. The tide is higher, the ocean is higher, at the location closest to the moon and on the opposite side of the Earth.
Why do some viruses cause cancer?
Infectious agents—both bacterial and viral—are responsible for about 25 percent of all human cancers. The virus infection does not by itself cause cancer, but can interfere with a cell’s normal maintenance of things.
How do animals evolve and get new traits?
All those different types of life are products of selection based on behavioral or physical traits.
How long would it take a tree to grow in space?
It’s a complicated question because, while researchers have grown spruce seedlings on the International Space Station, they haven’t grown full-size trees. Using knowledge of how trees operate on Earth, scientists can guess what’s going to happen when they’re grown in space.