Geometry of the Universe Can the Universe be finite in size? If so, what is ``outside'' the Universe? The answer to both these questions involves a discussion of the intrinsic geometry of the Universe. At this point it is important to remember the distinction between the curvature of space (negative, positive or flat) and the toplogy of the Universe (what is its shape = how is it connected). It is possible to different curvatures in different shapes. For example, a torus (donut) has a negative curvature on the inside edge even though it is a finite toplogy.
The 2013 Microscope Images of the Year The yawning trap of a carnivorous plant has taken First Prize in the 2013 Olympus BioScapes Digital Imaging Competition. Igor Siwanowicz, a researcher from the Howard Hughes Medical Institute captured the fascinating photo. The confocal image was selected from more than 2100 entries. Celebrating its 10th Anniversary, the competition is the world’s premier platform for honouring images and movies of human, plant and animal subjects as captured through light microscopes. In addition to the Top 10 award-winning recipients, 69 Honorable Mentions received recognition this year, including 55 still images and 14 movies. 1242a - VISTA gigapixel mosaic of the central parts of the Milky Way This striking view of the central parts of the Milky Way was obtained with the VISTA survey telescope at ESO’s Paranal Observatory in Chile. This huge picture is 108 200 by 81 500 pixels and contains nearly nine billion pixels. It was created by combining thousands of individual images from VISTA, taken through three different infrared filters, into a single monumental mosaic. These data form part of the VVV public survey and have been used to study a much larger number of individual stars in the central parts of the Milky Way than ever before. Because VISTA has a camera sensitive to infrared light it can see through much of the dust blocking the view for optical telescopes, although many more opaque dust filaments still show up well in this picture. This image is too large to be easily displayed at full resolution and is best appreciated using the zoom tool.
The Absurdity of Infinity: Astrophysicist Janna Levin Explains Whether the Universe Is Infinite or Finite in Letters to Her Mother – Brain Pickings By Maria Popova In 1998, while on the cusp of becoming one of the most significant theoretical cosmologists of our time, mathematician-turned-astrophysicist Janna Levin left her post at Berkeley and moved across the Atlantic for a prestigious position at Cambridge University. During the year and a half there, she had the time and space to contemplate the question that would eventually become the epicenter of her career — whether the universe is infinite or finite. What began as a series of letters to her mother, Sandy, eventually became an unusual diary of Levin’s “social exile as a roaming scientist,” and was finally published as How the Universe Got Its Spots: Diary of a Finite Time in a Finite Space (public library) — a most unusual and absorbing account of the paradoxes of finitude.
Thymus Gland - Anatomy Pictures and Information [Continued from above] . . . It has two distinct but identical lobes that are each surrounded by a tough, fibrous capsule. Within each lobe is a superficial region of tissue called the cortex and a histologically distinct deep region called the medulla. Epithelial tissues and lymphatic tissues containing dendritic cells and macrophages make up the majority of both regions of the thymus. The function of the thymus is to receive immature T cells that are produced in the red bone marrow and train them into functional, mature T cells that attack only foreign cells.
Physics Downloads Download Physics Notebooks UC Physics Lecture Demo PDF files: Click on the links below to download the files. The following PDF file is the entire Physics Lecture Demo Catalog: Mind-to-mind thought talking possible by 2030, scientist says Today we enjoy basic conversations with our smart phone, desktop PC, games console, TV and soon, our car; but voice recognition, many believe, should not be viewed as an endgame technology. Although directing electronics with voice and gestures may be considered state-of-the-art today, we will soon be controlling entertainment and communications equipment not by talking or waving; but just by thinking! Forget Siri, if future-thinking researchers have their way, your brain could soon be chatting away on the phone. A new implant developed by UC-Berkeley neuroscientist, Robert Knight, could create a game-changing relationship between you and your machines. You may soon be able to transmit thoughts via the Internet using a translator chip implanted in the brain that converts thoughts into words. Enter University of Reading's Dr.
Return to the Haikyo- Asama Volcano Museum This was my second time to go to the Asama Volcano Museum. The first was on my first haikyo road trip back in 2007- back when I was packing only a cameraphone to shoot with and cared far more about the explore than I did about the photography. It was an amazing place to ‘discover’ for ourselves, our nerves on high wires the whole time as the ethereal music rang out from the rooftop. In the two intervening years the balance of my interests has changed, with photography coming to the fore, perhaps naturally, over exploring. The Asama Museum has been shot pretty extensively though, and it’s becoming a challenge to see it in a new light.
The aliens are silent because they're dead Life on other planets would likely be brief and become extinct very quickly, say astrobiologists from The Australian National University (ANU). In research aiming to understand how life might develop, the scientists realised new life would commonly die out due to runaway heating or cooling on their fledgling planets. "The universe is probably filled with habitable planets, so many scientists think it should be teeming with aliens," said Dr Aditya Chopra from the ANU Research School of Earth Sciences and lead author on the paper, which is published in Astrobiology. Miniature Worlds Digitally Assembled from Hundreds of Photographs by Catherine Nelson Sydney-based artist Catherine Nelson refers to herself as a painter with a camera, in that she doesn’t see the world as a photographer does but instead uses photos as a medium with which she creates these fantastic miniature worlds. Each work is comprised of hundreds of photographs which she digitally stitches together, drawing from an extensive background in visual special effects having worked on such films as Moulin Rouge, Harry Potter and 300. Of her work Nelson says: When I embraced the medium of photography, I felt that taking a picture that represented only what was within the frame of the lens wasn’t expressing my personal and inner experience of the world around me. With the eye and training of a painter and with years of experience behind me in film visual effects, I began to take my photos to another level.