The Grand Ideas of Science
The universe began in a manner roughly consistent with the Big Bang theory.
Hi, I'm John for About.com. Today I will be giving you an overview of the "Grand Ideas" of science. The "Grand Ideas" of science is a list of scientific principles that James Trefil compiled in 2007 for his book, "Why Science?". The book explores the main theories that provide the foundation for the discoveries and advances in modern day science.These are some of the most significant: The universe is consistent and predictable. It is this basic concept that allows for the extrapolation and application of discoveries and laws to new domains.Matter is made from atoms. The atomic theory helps explain the behavior and properties of all matter.Stars have predictable life cycles. The stages in the stars' life help explain the interior processes of stars and the evolution of the galaxies and nebulas the stars inhabit.The universe began in a manner roughly consistent with the "Big Bang" theory. Which means that it is more than likely that the universe was small, hot, dense, and filled with matter, and then space expanded outwardly.Life's chemistry is encoded in DNA. The genetic information of all living things is contained inside the DNA molecule.Life evolved through the process of natural selection. Natural variations in populations lead to some individuals being more reproductively successful. Their characteristics will replace less successful traits.The laws of nature are the same in all frames of reference. Einstein demonstrated that there is no preferred frame of reference for analyzing phenomena in the universe. The observations of an event that are made from one location must be consistent with and translatable to observations made of the event from another location.Thank you for watching. For a more detailed list, please visit About.com.