Archive for the ‘science’ category: Page 123
Apr 17, 2016
Science as Our Only Hope For Centrifugal Advancement — The Survival of our Species
Posted by Michael Paton in categories: energy, lifeboat, science, space, transportation
Been a while since I’ve written a new article. Include my love for the Lifeboat Foundation in it!
Are we alone in the universe? Are we the first to witness the stellar bursts amongst the skies of old? Is it foretold that we were the ones destined for the stars, beginning at the Moon and then Mars? Once driving cars, do we venture far, beyond the horizon of antiquated liveliness, a surreal vibrancy-but-a-tranquillity to the origins of chaos? Without science, these imaginary realities are but dreams shuttered away in the subconscious mind. But, with this magical and logical element of human society, we are gifted with the power to envision the sleeping mind’s abstract impossibilities, transforming them into possible realities… So that we may morph the series of footsteps in waking life.
Like evolution is the guardian of change, time dictates discovery. We advance, and the nuances past become more prevalent; a new precedent set forth in every dedicated shard of time engulfed in the sublime, and rhythmic confines, of the mind. Interlinked by their commonality, the totality of the world’s abilities lays not in the futility of complacency, but in the eulogy of peaceful unity. Once we as species see the far reaches of harnessing all pieces of this puzzle [that is the international intellect], each passing day will become more perfect.
Apr 16, 2016
All of the technology is nearly ready for megawatt space based laser systems for science and planetary defense
Posted by Klaus Baldauf in categories: electronics, energy, science, space travel
California Polytechnic State University researchers propose a system capable of probing the molecular composition of cold solar system targets such as asteroids, comets, planets and moons from a distant vantage.
Their concept utilizes a directed energy beam to vaporize or sublimate a spot on a distant target, such as from a spacecraft near the object. With sufficient flux, our published results indicate that the spot temperature rises rapidly, and evaporation of materials on the target surface occurs (Hughes et al., 2015; Lubin and Hughes, 2015; Lubin et al., 2014). The melted spot serves as a high-temperature blackbody source, and ejected material creates a molecular plume in front of the spot. Molecular and atomic absorption of the blackbody radiation occurs within the ejected plume. Bulk composition of the surface material is investigated by using a spectrometer to view the heated spot through the ejected material. They envision a spacecraft that could be sent to probe the composition of a target asteroid, comet or other planetary body while orbiting the targeted object. The spacecraft would be equipped with an array of lasers and a spectrometer, powered by photovoltaics. Spatial composition maps could be created by scanning the directed energy beam across the surface. Applying the laser beam to a single spot continuously produces a borehole, and shallow sub-surface composition profiling is also possible.
Their initial simulations of laser heating, plume opacity, material absorption profiles and spectral detectivity show promise for molecular composition analysis. Such a system has compelling potential benefit for solar system exploration by establishing the capability to directly interrogate the bulk composition of objects from a distant vantage. They propose to develop models, execute preliminary feasibility analysis, and specify a spacecraft system architecture for a hypothetical mission that seeks to perform surface molecular composition analysis and mapping of a near-earth asteroid (NEA) while the craft orbits the asteroid.
Apr 14, 2016
One of the greatest things about science is that it can change its mind
Posted by Sean Brazell in categories: cosmology, science
Apr 13, 2016
Science allows paralyzed man move his hand again
Posted by Shailesh Prasad in categories: biotech/medical, neuroscience, science
Apr 12, 2016
News from the Allen Institute for Brain Science: March 2016
Posted by Shailesh Prasad in categories: neuroscience, science
Apr 3, 2016
Tesla Unveils Model 3 | Tesla Motors
Posted by Odette Bohr Dienel in categories: automation, business, Elon Musk, energy, innovation, robotics/AI, science, sustainability, transportation
Tag: Tesla
Hell has an address: 55 Cancri-e is the first alien planet to have some of its surface features directly observed. And it’s no tropical paradise.
For some time 55 Cancri-e has been considered “strange.” Some felt it may be made of diamond. Others suggested it was covered in exotic fluids.
Mar 30, 2016
This Week in Science: Mar 20 — 27, 2016
Posted by Shailesh Prasad in categories: 3D printing, bioengineering, biotech/medical, science, space
3D printed heart replicas, A new type of colossal galaxy, shutting down HIV with gene editing, and more!
Mar 30, 2016
This Week in Science: March 20-27th 2016
Posted by Shailesh Prasad in categories: 3D printing, bioengineering, biotech/medical, science, space
This Week in Science — March 20 −27, 2016.
3D printed heart replicas, A new type of colossal galaxy, shutting down HIV with gene editing, and more.