Bill Nye and the Discovery Channel give you the greatest discoveries in science. Host Bill Nye explores the most significant medical discoveries about the human body, from 1538 until the 1980s. From the first systematic examination of the human body through dissection in the 16th century to the 20th-century discoveries of how vitamins, insulin, and the antibiotics can help overcome deadly disorders and diseases; and modern-day discoveries about genetics and cancer and the causes of AIDS.

Bill Nye and the Discovery Channel give you the greatest discoveries in science. Earth is always changing, and Earth's species must continually adapt. Host Bill Nye gives an inside look at planet Earth, from its inner core to its protective magnetic field. Discover how earthquakes and volcanoes help explain plate tectonics and the dynamic geology of oceans and continents. Learn how the Earth's atmosphere gives scientific insight about weather and climate, and look at forms of radiation and the potential dangers from harmful gases and geologic changes.

Bill Nye and the Discovery Channel give you the greatest discoveries in science. Bill Nye and the Discovery Channel give you the greatest discoveries in science. It took 150 years to progress from Mendel's experiments with peas to the complete sequencing of the human genome. Host Bill Nye explores why certain traits are passed through families and species. He discusses the process by which scientists came to understand that inherited information is passed according to rules. Featuring discoveries related to DNA and its breakthrough as the chemical basis of genetic information, as well as a set of instructions for making the essential proteins of life. Nye also explains that RNA is the messenger that carries the instructions from living cells to enable protein production. Nye visits FBI headquarters in Washington, D.C., where DNA becomes personal. The discovery that DNA sequences are unique to each individual ushered in the era of criminal forensics, playing an important role in courtrooms ever since.

Bill Nye and the Discovery Channel give you the greatest discoveries in science. Explore the history of paleontology, beginning at the site of an asteroid that may have brought about the demise of the dinosaurs. Visit Bob Ballard, who discovered new deep-sea life forms, and Douglas Erwin, who demonstrates how fossils provide a vivid snapshot of prehistoric life. Explore Linnaeus' 1735 species classification system and a dramatic re-creation of Darwin's development of his 19th-century theory of evolution.

Bill Nye and the Discovery Channel give you the greatest discoveries in science. Explore the history of paleontology, beginning at the site of an asteroid that may have brought about the demise of the dinosaurs. Visit Bob Ballard, who discovered new deep-sea life forms, and Douglas Erwin, who demonstrates how fossils provide a vivid snapshot of prehistoric life.\nExplore Linnaeus' 1735 species classification system and a dramatic re-creation of Darwin's development of his 19th-century theory of evolution.

Host Bill Nye looks back over the past two centuries, in which chemistry has brought us from a time when atoms were a hypothesis to an age where scientists may be able to combine particles on the atomic level into micro-machines. Learn how electricity transforms chemicals, elements can combine into more complex molecules, and the combination of nonliving substances produced organic compounds that led to pharmacology. Nye examines the second half of the 19th century, a time dominated by discoveries relating to light, electrons, radioactivity, and the periodic table of the elements as well as 20th century advances in science.

Bill Nye and the Discovery Channel give you the greatest discoveries in science. In this episode, Nye covers Einstein's theory of general relativity, demonstrates how Hubble determined that the universe is expanding, and discusses the 20th-century advancements that help us understand gamma ray bursts, black holes, pulsars, and quasars. Highlights include Edmond Halley, whose discovery of comets orbiting the sun proved that gravity works in space, and Alexander and Caroline Herschel, whose map of the sky brought new understanding of the universe.

Arithmetic, Population and Energy, a presentation by professor Albert A Bartlett

A UK survey has revealed that myths about contraception may be widespread. One in five women said they had heard of kitchen items, including bread, cling film and even chicken skin, being used as alternative barrier methods. Others had heard food items such as kebabs, Coca-cola or crisps could be used as oral contraceptives.

According to a paper in PLoS Computational Biology, "PageRank" can be applied to the study of food webs.

Lesson 17 of a complete course in algebra