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Science Toys. Hubble Heritage Gallery of Images. Algorithmatic. Free Math Help and Free Math Videos Online at 10 Books that will Substitute A Computer Science Degree. The Periodic Table of Videos - University of Nottingham. 2009!!! : Neurotopia - 50 Best Science Blog Posts. Home. 5 TED Talks on Science That Will Blow Your Mind. Timeline - Chemical Scientific Discovery. The Timeline is a visual exploration of key events in the history of science with particular emphasis on chemistry created by artist Murray Robertson.

Timeline - Chemical Scientific Discovery

Individual items are illustrated and linked to further information on each subject. The timeline is an evolving project and continues to expand, encompassing a wide range of subjects with relevance to general and scientific knowledge. Visit the Timeline website to see many more images and suggest your own entries.

Ask a Scientist Index Directory. Lune. A lune is a plane figure bounded by two circular arcs of unequal radii, i.e., a crescent.


(By contrast, a plane figure bounded by two circular arcs of equal radius is known as a lens.) For circles of radius and whose centers are separated by a distance , the area of the lune is given by where is the area of the triangle with side lengths. Biochem4schools: Search by topic. Visual Calculus. Algorithm Tutorials. Have we found the universe that existed before the Big Bang? First of all, let me say that this is not a comment on the overall article, but a small portion of it included below.

Have we found the universe that existed before the Big Bang?

I stopped reading at the line "it's not clear whether one can even use the term "before" in reference to a pre-Big-Bang cosmos, as time itself may not have existed yet" There is no such thing as "time" as we see it. Quantum Physics: David Bohm. Bohmian Wave Mechanics, Holographic Universe, Bohm Biography. Introductory Quotes to David Bohm's Holographic Universe It is proposed that the widespread and pervasive distinctions between people (race, nation, family, profession, etc., etc.) which are now preventing mankind from working together for the common good, and indeed, even for survival, have one of the key factors of their origin in a kind of thought that treats things as inherently divided, disconnected, and "broken up" into yet smaller constituent parts.

Quantum Physics: David Bohm. Bohmian Wave Mechanics, Holographic Universe, Bohm Biography

Robert Lanza, M.D.: Does the Past Exist Yet? Evidence Suggests Your Past Isn't Set in Stone. Recent discoveries require us to rethink our understanding of history.

Robert Lanza, M.D.: Does the Past Exist Yet? Evidence Suggests Your Past Isn't Set in Stone

"The histories of the universe," said renowned physicist Stephen Hawking "depend on what is being measured, contrary to the usual idea that the universe has an objective observer-independent history. " Chromoscope - View the Universe in different wavelengths. Synthetic Biology index. The Science Network. The History of Mathematics - BBC doc (part1) The Secret Life of Chaos Part (1 - 6) DNA Interactive. Traits of Life: Exhibits. Protein Data Bank. A Structural View of Biology This resource is powered by the Protein Data Bank archive-information about the 3D shapes of proteins, nucleic acids, and complex assemblies that helps students and researchers understand all aspects of biomedicine and agriculture, from protein synthesis to health and disease.

Protein Data Bank

As a member of the wwPDB, the RCSB PDB curates and annotates PDB data. The RCSB PDB builds upon the data by creating tools and resources for research and education in molecular biology, structural biology, computational biology, and beyond. Use this website to access curated and integrated biological macromolecular information in the context of function, biological processes, evolution, pathways, and disease states.

Structure and Health Focus: Ebola Virus Proteins 3D Structure: Jmol The Jmol molecular viewer offers several options for display and analysis. Top 10 Amazing Biology Videos. Cyborgs, stem cells, glowing mice, and hilarious music videos are great reasons to be excited about biology.

Top 10 Amazing Biology Videos

Here are some of our favorite clips from the life sciences. 10. Immune Cell Chasing a BacteriumIt may look like the predecessor to Pac Man, but this vintage clip shows a neutrophil wending its way through a crowd of red blood cells to destroy its bacterial nemesis. 9. Plus Magazine. Early stress alters epigenome. Scientists have figured out how stress experienced early in life can cause long-lasting changes in physiology and behavior -- via epigenetics.

Early stress alters epigenome

Everywhere in a Flash: The Quantum Physics of Photosynthesis. By hitting single molecules with quadrillionth-of-a-second laser pulses, scientists have revealed the quantum physics underlying photosynthesis, the process used by plants and bacteria to capture light’s energy at efficiencies unapproached by human engineers.

Everywhere in a Flash: The Quantum Physics of Photosynthesis

The quantum wizardry appears to occur in each of a photosynthetic cell’s millions of antenna proteins. These route energy from electrons spinning in photon-sensitive molecules to nearby reaction-center proteins, which convert it to cell-driving charges. Almost no energy is lost in between. That’s because it exists in multiple places at once, and always finds the shortest path. “The analogy I like is if you have three ways of driving home through rush hour traffic.

Scholes’ findings, published Wednesday in Nature, are the strongest evidence yet for coherence — the technical name for multiple-state existence — in photosynthesis. The Nature findings, made at room temperature in common marine algae, show that it does. Images: 1. WorldWide Telescope. SoundVision Productions Presents The DNA Files.