The Science Network 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. "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." Is it possible we live and die in a world of illusions? In 2002, scientists carried out an amazing experiment, which showed that particles of light "photons" knew -- in advance −- what their distant twins would do in the future. More recently (Science 315, 966, 2007), scientists in France shot photons into an apparatus, and showed that what they did could retroactively change something that had already happened. Of course, we live in the same world. But what about dinosaur fossils? Like the light from Wheeler's quasar, historical events such as who killed JFK, might also depend on events that haven't occurred yet. History is a biological phenomenon − it's the logic of what you, the animal observer experiences.
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. Each part is considered to be essentially independent and self-existent. (David Bohm, Wholeness and the Implicate Order) The notion that all these fragments is separately existent is evidently an illusion, and this illusion cannot do other than lead to endless conflict and confusion. Reality cannot be found except in One single source, because of the interconnection of all things with one another. We are a part of Nature as a whole whose order we follow. A Very Brief Introduction Geoff Haselhurst Bohmian Mechanics
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. 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. I'm going to go back and finish the article now, however, I just had a small disagreement with that excerpt. 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. 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. A Molecular View of HIV Therapy January Molecule of the Month Nuclear Pore Complex Deposition Preparation Tools Data Extraction Small Molecules Ligand Expo: Search the Chemical Component Dictionary for the IDs of released ligands Data Format Conversion 3D Structure Viewers
Top 10 Amazing Biology Videos | Wired Science Cyborgs, stem cells, glowing mice, and hilarious music videos are great reasons to be excited about biology. 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. 8. 7. 6. 5. 4. 3. 2. 1. Last week, regenerative medicine researchers announced that they have grown a new windpipe for a woman who was crippled by tuberculosis. See Also:
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. Image: Max-Planck Institute of Psychiatry, MunichSpecifically, early stress appears to induce epigenetic changes in a specific regulatory region of the genome, affecting the expression of a hormone important in controlling mood and cognition into adulthood, according to a study published online today (November 8) in Nature Neuroscience. This is the fi Scientists have figured out how stress experienced early in life can cause long-lasting changes in physiology and behavior -- via epigenetics.
Everywhere in a Flash: The Quantum Physics of Photosynthesis | Wired Science 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. 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. See Also:
Home Common Compound Library A searchable database of over 800 common compound names, formulas, structures, and properties. Companion Notes Hyperlinked notes and guides for first semester general chemistry. Construction Kits Flash-based kits for building chemical formulas, names, equations, and problem solutions. Articles Featured articles, books, and tutorials. Toolbox Interactive graphing, popup tables, and calculators. Tutorials Index of self-guided tutorials, quizzes, and drills on specific topics. 2009!!! : Neurotopia - 50 Best Science Blog Posts 5 TED Talks on Science That Will Blow Your Mind Andrew Maynard is a scientist and emerging technology adviser. He blogs at 2020 Science and tweets as @2020science. Some of the most entertaining, informative and mind-blowing science videos on the web come from TED – the Technology, Entertainment, Design conference. Challenged to give the “talk of their lives,” the world’s top scientists and science communicators have been dazzling audiences – many of whom are thought leaders, trend-setters and entertainers - for years now. To make things easier, here are five of my favorite TED Talks on science. - Was I engaged within the first few seconds? 1. What on earth do coral, complex mathematics and the craft of crochet have in common? 2. Four billion years of evolution have led to organisms that can reproduce, survive the harshest environments, and convert simple chemicals into complex ones. 3. Is there life on other planets? 4. Why are scientists so excited about smashing subatomic particles together at near-light velocities? 5.