The organization of the structure of the body of an organism depends on the nature of the body and the condition in which the organism belongs. Understanding the basic ideas about how the structure is formed is related to how different tissues are arranged. Proces...
orbits a star other than our Sun. Again, an extrasolar planet can be either Rocky, Gas or Dwarf. We have been discovering planets orbiting around other stars. Still, most of those have been Gas Giants whose lives could not exist because there was no water, land, or atmosphere to survive...
That was the discovery of another planet in the system, Gliese 581 e. Compared with other exoplanets, its mass is quite small, only about twice that of Earth. Student:So, is Gliese 581 e a more Earth-like planet? Professor: Well, we have to consider its orbit. ...
Visiting a community to better understand the lives of the people who live there – that's the sort of positive impact tourism is supposed to have.
This organic matter was constantly altered on its long journey towards our planet, its final composition the product of a singular history which scientists are now attempting to reconstruct.但是这些最终进入地球海洋的碳质物质经历了一系列的变化，特定的温度、特定的事件、特定的恒星、来自太阳的特定量的...
If life on another planet were fundamentally like life on Earth, the macromolecules of living things would be based on which element? A. Carbon B. Hydrogen C. Nitrogen D. Oxygen E. Phosphorus The big bang: A. Happened over 13 billion years ago. B. Was also known as the 'Great Dying'...
Does dark matter exist? I wish I knew! What we do know is that if we look at a typical galaxy, take account of all the matter that we see (stars, gas, dust) and use Newton's Laws of Gravity and motion (or, more correctly, Einstein's General Relativity), to try to describe the...
The first three Lagrange points wereinitially proposedby the great mathematician Leonhard Euler in 1760 while he was studying the inward and outward forces acting on a large body orbiting another object, such as the sun. Later, in the early 1770s, Joseph-Louis Lagrange,who was Euler's student...
It was really a thrill that I passed my driving test at the first attempt. 我们试图在黑暗中认出回家的路, 但是白费力气。 We attempted to make out the way back home in the darkness, but in vain. (attempt v. ) We made an attempt to make out the way back home in the darkness, but...
journeytowards Antarctica.“From seeing the wildlifetowitnessingsunrises,thewholeexperiencewasamazing.Antarcticaleftanimpression onmethatnootherplacehas,”Ginnisays.“IrememberthefirsttimeIsawahumpbackwhale;it justroseoutofthewaterlikesomeprehistoric creatureandIthoughtitwassmilingatus.You couldstillheartheoperatic...