Time Machine - Masters of Time - BBC Documentary
Other cool documentaries:
an Archive with,
yet another version of reality...
Labels:
Science and Tech
0
comments
Oxford professor Richard Dawkins presents a series of lectures on life, the universe, and our place in it. With brilliance and clarity, Dawkins unravels an educational gem that will mesmerize young and old alike. Illuminating demonstrations, wildlife, virtual reality, and special guests (including Douglas Adams) all combine to make this collection a timeless classic.
Professor Allan Chapman: History, Science and Religion
Professor Allan Chapman examines the duty of historians to bring the true history of scientific achievement to the public.
By emphasizing the "grand amateurs" of the nineteenth century, Chapman debunks long-standing myths and assumptions about western scientific tradition. Date: Wed, 12 Nov 2008
Embryonic stem cells, or ES cells, are cells that can be isolated from early embryos, before they differentiate into specific types of cells. Because stem cells have the potential to generate fresh, healthy cells of nearly any type, there is interest in exploring their use to treat and cure various diseases. The societal controversy regarding human ES cells relates primarily to their derivation from very early embryos. In addition, certain stem cell lines are developed using a cloning technique called somatic cell nuclear transfer, which can generate cells that are an exact genetic match to a patient.
Labels:
Science and Tech
0
comments
Horizon: The President's Guide to Science
48:49
Aired: September 16, 2008 on BBC 2. Horizon asks some of the biggest names in science to have a quiet word with the new president, be it Obama or McCain, in the Presidents Guide to Science. The United States president is quite simply the most powerful man on earth, but they often know little about science. That's a problem when the decisions they make will affect every one of us, from nuclear proliferation to climate change. To help the new president get to grips with this intimidating responsibility some of the world's leading scientists, from Dawkins to Watson, share some crucial words of advice.
About this talk
Biochemist Kary Mullis talks about the basis of modern science: the experiment. Sharing tales from the 17th century and from his own backyard-rocketry days, Mullis celebrates the curiosity, inspiration and rigor of good science in all its forms.
About Kary Mullis
Kary Mullis won the Nobel Prize in Chemistry for developing a way to copy a strand of DNA. (His technique, called PCR, jump-started the 1990s' biorevolution.)
Labels:
Forums - TED Talks,
Science and Tech
0
comments
This is part one of what will be a two part series on the most influential scientists in history. While these are not technically the “greatest” scientists, there is bound to be some overlap as the contributions that many of these men and women made to science are among the most important. Be sure to tell us who you think should be on the future list - we already have our second ten, but it might lead to a third or fourth.
“One never notices what has been done; one can only see what remains to be done.”
Polish physicist and chemist, Marie Curie was a pioneer in the field of radioactivity, the only person honored with Nobel Prizes in two different sciences, and the first female professor at the University of Paris. She founded the Curie Institutes in Paris and Warsaw. Her husband Pierre Curie was also a Nobel laureate, as were her daughter Irene Joliot-Curie and son-in-law Frederic Joliot-Curie. Her achievements include the creation of a theory of radioactivity (a term coined by her), techniques for isolating radioactive isotopes, and the discovery of two new elements, radium and polonium. It was also under her personal direction that the world’s first studies were conducted into the treatment of neoplasms (”cancers”), using radioactive isotopes. While an actively loyal French citizen, she never lost her sense of Polish identity. She named the first new chemical element that she discovered (1898) “polonium” for her native country, and in 1932 she founded a Radium Institute in her hometown Warsaw, headed by her physician-sister Bronisława.
“Science is a differential equation. Religion is a boundary condition.”
English mathematician and logician, Turing is often considered to be the father of modern computer science. He provided an influential formalization of the concept of the algorithm and computation with the Turing machine. With the Turing test, meanwhile, he made a significant and characteristically provocative contribution to the debate regarding artificial intelligence: whether it will ever be possible to say that a machine is conscious and can think. He later worked at the National Physical Laboratory, creating one of the first designs for a stored-program computer, the ACE, although it was never actually built in its full form. In 1948, he moved to the University of Manchester to work on the Manchester Mark I, then emerging as one of the world’s earliest true computers. During the Second World War, Turing worked at Bletchley Park, the UK’s code breaking centre, and was for a time head of Hut 8, the section responsible for German naval cryptanalysis. He devised a number of techniques for breaking German ciphers, including the method of the bombe, an electromechanical machine that could find settings for the Enigma machine.
“An expert is a man who has made all the mistakes which can be made in a very narrow field.”
Niels Bohr was a Danish physicist who made fundamental contributions to understanding atomic structure and quantum mechanics, for which he received the Nobel Prize in Physics in 1922. Bohr’s work helped solve the problems classical physics could not explain about the nuclear model of the atom. He postulated that electrons moved in fixed orbits around the atom’s nucleus, and he explained how they emitted or absorbed energy. Bohr mentored and collaborated with many of the top physicists of the century at his institute in Copenhagen. He was also part of the team of physicists working on the Manhattan Project. One of his sons, Aage Niels Bohr, grew up to be an important physicist who, like his father, received the Nobel Prize, in 1975. Bohr has been described as one of the most influential physicists of the 20th century.
“We have no right to assume that any physical laws exist, or if they have existed up to now, that they will continue to exist in a similar manner in the future.”
Max Planck, a German physicist, is considered to be the founder of quantum theory, and one of the most important physicists of the twentieth century. Planck made many contributions to theoretical physics, but his fame rests primarily on his role as originator of the quantum theory. This theory revolutionized our understanding of atomic and subatomic processes, just as Albert Einstein’s theory of relativity revolutionized our understanding of space and time. Together they constitute the fundamental theories of 20th-century physics. His discoveries have led to industrial and military applications that affect every aspect of modern life.
“I love fools’ experiments. I am always making them.”
English naturalist and biologist, Darwin demonstrated that all species of life have evolved over time from common ancestors through the process he called natural selection. The fact that evolution occurs became accepted by the scientific community and the general public in his lifetime, while his theory of natural selection came to be widely seen as the primary explanation of the process of evolution in the 1930s, and now forms the basis of modern evolutionary theory. In modified form, Darwin’s scientific discovery remains the foundation of biology, as it provides a unifying logical explanation for the diversity of life. His 1859 book On the Origin of Species established evolution by common descent as the dominant scientific explanation of diversification in nature. He also examined human evolution and sexual selection in The Descent of Man, and Selection in Relation to Sex, followed by The Expression of the Emotions in Man and Animals. In recognition of Darwin’s pre-eminence, he was one of only five 19th century UK non-royal personages to be honored by a state funeral.
“Anyone who conducts an argument by appealing to authority is not using his intelligence; he is just using his memory.”
Leonardo da Vinci was an Italian polymath. He was an expert mathematician, engineer, inventor, anatomist, painter, sculptor, architect, botanist, musician and writer. Leonardo has often been described as the archetype of the “Renaissance man”, a man whose seemingly infinite curiosity was equalled only by his powers of invention. Leonardo is revered for his technological ingenuity. He conceptualized a helicopter, a tank, concentrated solar power, a calculator, the double hull and outlined a rudimentary theory of plate tectonics. Relatively few of his designs were constructed or were even feasible during his lifetime, but some of his smaller inventions, such as an automated bobbin winder and a machine for testing the tensile strength of wire, entered the world of manufacturing unheralded. As a scientist, he greatly advanced the state of knowledge in the fields of anatomy, civil engineering, optics, and hydrodynamics.
“All truths are easy to understand once they are discovered; the point is to discover them.”
Galileo was an Italian physicist and astronomer. His achievements include improvements to the telescope and consequent astronomical observations, and support for Copernicanism. Galileo has been called the “father of modern observational astronomy”, the “father of modern physics”, the “father of science”, and “the Father of Modern Science.” The motion of uniformly accelerated objects, taught in nearly all high school and introductory college physics courses, was studied by Galileo as the subject of kinematics. His contributions to observational astronomy include the telescopic confirmation of the phases of Venus, the discovery of the four largest satellites of Jupiter, named the Galilean moons in his honor, and the observation and analysis of sunspots. Galileo also worked in applied science and technology, improving compass design. Galileo’s championing of Copernicanism was controversial within his lifetime. The geocentric view had been dominant since the time of Aristotle, and the controversy engendered by Galileo’s presentation of heliocentrism as proven fact resulted in the Catholic Church’s prohibiting its advocacy because it was not empirically proven at the time. Galileo was eventually forced to recant his heliocentrism and spent the last years of his life under house arrest on orders of the Holy Inquisition.
“The scientists of today think deeply instead of clearly. One must be sane to think clearly, but one can think deeply and be quite insane.”
Tesla was a Serbian engineer and inventor who is often described as the most important scientist and inventor of the modern age, a man who “shed light over the face of Earth”. He is best known for many revolutionary contributions in the field of electricity and magnetism in the late 19th and early 20th centuries. Tesla’s patents and theoretical work formed the basis of modern alternating current electric power (AC) systems, including the polyphase power distribution systems and the AC motor, with which he helped usher in the Second Industrial Revolution. Contemporary biographers of Tesla have regarded him as “The Father of Physics”, “The man who invented the twentieth century” and “the patron saint of modern electricity.” Aside from his work on electromagnetism and electromechanical engineering, Tesla has contributed in varying degrees to the establishment of robotics, remote control, radar and computer science, and to the expansion of ballistics, nuclear physics, and theoretical physics. In 1943, the Supreme Court of the United States credited him as being the inventor of the radio. Many of his achievements have been used, with some controversy, to support various pseudosciences, UFO theories, and early New Age occultism.
“A man should look for what is, and not for what he thinks should be.”
Einstein, a German physicist, is best known for his theory of relativity and specifically mass–energy equivalence, expressed by the equation E = mc2. Einstein received the 1921 Nobel Prize in Physics “for his services to Theoretical Physics, and especially for his discovery of the law of the photoelectric effect. Einstein’s many contributions to physics include his special theory of relativity, which reconciled mechanics with electromagnetism, and his general theory of relativity, which was intended to extend the principle of relativity to non-uniform motion and to provide a new theory of gravitation. His other contributions include advances in the fields of relativistic cosmology, capillary action, critical opalescence, classical problems of statistical mechanics and their application to quantum theory, an explanation of the Brownian movement of molecules, atomic transition probabilities, the quantum theory of a monatomic gas, thermal properties of light with low radiation density (which laid the foundation for the photon theory), a theory of radiation including stimulated emission, the conception of a unified field theory, and the geometrization of physics. Einstein published over 300 scientific works and over 150 non-scientific works. The physics community reveres Einstein, and in 1999 Time magazine named him the “Person of the Century”. In wider culture the name “Einstein” has become synonymous with genius.
“To myself I am only a child playing on the beach, while vast oceans of truth lie undiscovered before me.”
Newton was an English physicist, mathematician, astronomer, natural philosopher, alchemist, theologian and one of the most influential men in human history. His Philosophiæ Naturalis Principia Mathematica, published in 1687, is considered to be the most influential book in the history of science. In this work, Newton described universal gravitation and the three laws of motion, laying the groundwork for classical mechanics, which dominated the scientific view of the physical universe for the next three centuries and is the basis for modern engineering. Newton showed that the motions of objects on Earth and of celestial bodies are governed by the same set of natural laws by demonstrating the consistency between Kepler’s laws of planetary motion and his theory of gravitation, thus removing the last doubts about heliocentrism and advancing the scientific revolution. In mechanics, Newton enunciated the principles of conservation of momentum and angular momentum. In optics, he built the first “practical” reflecting telescope and developed a theory of color based on the observation that a prism decomposes white light into a visible spectrum. He also formulated an empirical law of cooling and studied the speed of sound. In mathematics, Newton shares the credit with Gottfried Leibniz for the development of the differential and integral calculus. He also demonstrated the generalized binomial theorem, developed the so-called “Newton’s method” for approximating the zeroes of a function, and contributed to the study of power series. Newton’s stature among scientists remains at the very top rank, as demonstrated by a 2005 survey of scientists in Britain’s Royal Society asking who had the greater effect on the history of science, Newton was deemed much more influential than Albert Einstein.
This article is licensed under the GFDL because it contains quotations from Wikipedia.
Labels:
Great Minds,
Science and Tech
0
comments
"The UCLA Center for Society and Genetics presents a series of discussions on stem cells. In this installment, Matthew C. Nisbet, Ohio State University School of Communication, explores how the debate over stem cells is framed. Richard Deyo, University of Washington School of Medicine, discusses lessons learned from previous types of cell-based therapies. Finally, NPR's Joe Palca examines how the media report on stem cells."
Labels:
Our Future...?,
Science and Tech
0
comments
Cody's Books
Berkeley, CA
May 1st, 2008
George Johnson, acclaimed New York Times science writer, discusses The Ten Most Beautiful Experiments, an irresistible book about the ten most fascinating experiments in the history of science, drawn from physics, chemistry, biology, and psychiatry.
Johnson takes us to those times when the world seemed filled with mysterious forces, when scientists were dazzled by light, by electricity, and by the beating of the hearts they laid bare on the dissecting table. We see Galileo singing to mark time as he measures the pull of gravity, and Newton carefully inserting a needle behind his eye to learn how light causes vibrations in the retina.
These ten elegant histories remind us of the original romance and excitement of a single soul staring into the unknown.
George Johnson writes regularly about science for The New York Times. He has also written for Scientific American, The Atlantic Monthly, Time, Slate, and Wired, and his work has been included in The Best American Science Writing. He lives in Santa Fe - Cody's Books
FORA.tv - George Johnson: The Ten Most Beautiful Experiments
Labels:
Our Real Blue Dot,
Science and Tech
0
comments
Cody's Books, Berkeley, CA. Oct 14th, 2006
Jane Poynter tells the story of The Human Experiment: Two Years and Twenty Minutes Inside Biosphere 2.
In September 1991, four men and four women sealed themselves inside a miniature replica of Planet Earth called Biosphere 2. They promised to live cut off from the outside world for two years. Nothing would go in or out of their three-acre terrarium - no food, no water, not even air. They would survive on the food they grew, the water they recycled, and the oxygen they created. Now, for the first time, one of those crewmembers tells the inside story of what really happened at the controversial, $250-million project. Some called the experiment a fraud and its proponents a cult. Dr. Jane Goodall calls Poynter's account "a fantastic adventure into the heart of one of the most innovative experiments of the past 30 years." Poynter recounts a life inside Biosphere 2 far from the new Eden proponents had envisioned - hunger, sickness, psychological stress, and shattered friendships were common, combined with celebrations and moments of great joy.
Jane Poynter: Inside the Biosphere - FORA.tv
Labels:
Science and Tech
0
comments
PICNIC Network
Westergas, Amsterdam
Sep 28th, 2007
Dick Hardt discusses Identity 2.0: Who Are We Now?
Enjoy this introduction on Identity 2.0 and how the concept of digital identity is evolving - This fast-paced talk will provide perspectives on what is identity, where we are today and what might happen in the future -
Identity 2.0: Who Are We Now? - FORA.tv
Labels:
Science and Tech,
Web
0
comments
Technology for the 21st Century
SPEAKER:
Scott C. Donnelly
Senior Vice President General Electric Global Research
ABOUT THE SPEAKER:
Scott C. Donnelly is the General Electric Company's Senior Vice President for research and development and a member of the company's Corporate Executive Council. He directs GE Global Research, one of the world's largest and most diversified industrial research organizations. At this corporate-level division, some 2,300 people - including approximately 1,700 scientists, engineers, and technicians from virtually every major scientific and engineering discipline - concentrate their efforts on the company's longer-range technology needs. The organization has facilities in the United States, India, and China working in collaboration with GE businesses around the world.
Donnelly serves on the Industrial Advisory Committee of several engineering colleges, the Research Foundation of the Medical College of Wisconsin and the Center for Innovation in Minimally Invasive Therapy at Massachusetts General Hospital. He also serves as a director of GE Capital Corporation and GE Capital Services Inc.
MIT World » : Technology for the 21st Century
Edward O. Wilson is Pellegrino University Professor emeritus at Harvard. His awards include the National Medal of Science and two Pulitzer Prizes.
Edward O. Wilson
Conversations with History: Scientific and the Information Age, Zhores Alferov
UCTV: UC Berkeley
58 min 58 sec - Oct 5, 2007
Conversations host Harry Kreisler welcomes Russian Nobel Prize Laureate Zhores Alferov for a discussion of the influences that shaped his scientific career, the interplay between theory and experimentation in his own scientific discovery, and the impact of the global science community on discovery and policy. He offers insights on the education of the next generation of scientists and describes the complicated relationship between scientists and the state. Series: Conversations with History
Conversations with History: Scientific and the Information Age, Zhores Alferov
Labels:
Our Future...?,
Science and Tech
0
comments
About this Talk
Kevin Kelly uses evolutionary theory to discuss the purpose and value of technology. By asking, "What does technology want?" he shows that its movement toward ubiquity and complexity is much like the evolution of life. Using a discipline-hopping range of examples -- from exotic flora to the Big Bang, from the Amish to Mozart -- Kelly not only draws an encompassing picture of humans and machines evolving, but discovers, while he's at it, a moral assignment for everyone in his audience.
TED | Talks | Kevin Kelly: How does technology evolve? Like we did (video)
Prolific inventor and outrageous visionary Ray Kurzweil explains in abundant, grounded detail why -- by the 2020s -- we will have reverse-engineered the human brain, and nanobots will be operating your consciousness. Kurzweil draws on years of research to show the speed at which technology is evolving, and projects forward into an almost unthinkable future to outline the ways we'll use technology to augment our own capabilities, forever blurring the lines between human and machine.
Ray Kurzweil is an engineer who has radically advanced the fields of speech, text, and audio technology. He's also one of our finest thinkers, revered for his dizzying -- yet convincing -- writing on the advance of technology, the limits of biology, and the future of the human species.
TED | Talks | Ray Kurzweil: How technology's accelerating power will transform us (video)
Labels:
Forums - TED Talks,
Science and Tech
0
comments