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Physicists get ever closer to a Harry Potter-style invisibility cloak with a new, less-bulky metascreen that scatters nano-particles. “Moving forward, one of the key challenges for the researchers will be to use ‘mantle cloaking’ to hide an object from visible light.”
Well, that’s that then. While Washington and our change president continue to fiddle, new data from 2012 suggests we are now flying past the two-degree rise threshold we set for ourselves to alert a global calamity due to climate change. “‘The prospects of keeping climate change below that (2-degree goal) are fading away,’ Tans says.”
For what this means, see Bill McKibben in the article I linked here and here:
| Some context: So far, we’ve raised the average temperature of the planet just under 0.8 degrees Celsius, and that has caused far more damage than most scientists expected. (A third of summer sea ice in the Arctic is gone, the oceans are 30 percent more acidic, and since warm air holds more water vapor than cold, the atmosphere over the oceans is a shocking five percent wetter, loading the dice for devastating floods.)
Given those impacts, in fact, many scientists have come to think that two degrees is far too lenient a target. “Any number much above one degree involves a gamble,” writes Kerry Emanuel of MIT, a leading authority on hurricanes, “and the odds become less and less favorable as the temperature goes up.” Thomas Lovejoy, once the World Bank’s chief biodiversity adviser, puts it like this: “If we’re seeing what we’re seeing today at 0.8 degrees Celsius, two degrees is simply too much.” NASA scientist James Hansen, the planet’s most prominent climatologist, is even blunter: “The target that has been talked about in international negotiations for two degrees of warming is actually a prescription for long-term disaster.” At the Copenhagen summit, a spokesman for small island nations warned that many would not survive a two-degree rise: “Some countries will flat-out disappear.” When delegates from developing nations were warned that two degrees would represent a “suicide pact” for drought-stricken Africa, many of them started chanting, “One degree, one Africa.” |
And that’s two degrees. Now, try four. In other words, game over, Man, game over.
Update: More fuel for the pyre: The Earth’s temperature graphed over 10,000 years. “‘What we found is that temperatures increased in the last hundred years as much as they had cooled in the last six or seven thousand,’ he said. ‘In other words, the rate of change is much greater than anything we’ve seen in the whole Holocene,” referring to the current geologic time period, which began around 11,500 years ago.'”
As CERN in Switzerland becomes the new frontier in particle discoveries, physicists worry the United States is falling behind. “How such efforts will fare in this age of sequestration and federal cutbacks is unknown, he admitted, but particle physics has produced important spinoffs into medicine, including imaging devices and beams to treat cancer, and in materials science.”
You know what the world really needs? A system of dormant underwater drones, which apparently DARPA is hard at work on. If you want to use this type of tech to explore the oceans of Europa or Titan, fine. For the Taiwan Strait? Sounds like a terrible idea. SKYNET aside, glitches happen.
Atoms or systems into ruin hurl’d, And now a bubble burst, and now a world. And if the asteroids don’t get us, there’s always the chance that an alternate universe might pop and destroy everything, a la Richard Grant in How to Get Ahead in Advertising. “The problem, says Lykken, is the potential for vacuum instability — a phenomenon that could spawn an all-consuming alternate universe within our own.”
Not as pressing as asteroids, however — this event, if current calculations hold up, is most likely to happen round the End of the Universe anyway, so be sure to get a table by the window.
President Obama makes the case for federal investment in the Brain Activity Map Project. (You heard it here first, tinfoil hat people. The tyranny of the Kenyan socialist will not stop at your precious bodily fluids — He’s going to read your brainwaves too!) Seriously, though, investing in basic scientific research like this is, er, a no-brainer. It creates jobs while advancing the frontiers of human knowledge in all kinds of unanticipated ways. We’d be stupid not to support this — which means, of course, the jury’s still out on whether we will.
Update: “BAM is an acronym you’ll probably be hearing a lot in the weeks and months to come — so let’s talk about what the BAM project is, what it isn’t, and why it’s raising both interest and eyebrows throughout the scientific community.” Io9 has more.
Data from Kepler’s Space Telescope suggests that an estimated 6% of red dwarf stars have planets in the habitable zone, meaning, statistically, we are basically surrounded by inhabitable worlds. “Our Sun is surrounded by a swarm of red dwarf stars. About 75 percent of the closest stars are red dwarfs.”
A novel path of brain research suggests our immune system may play a key role in determining intelligence. “The same T cells that protect the brain from inflammation also work to keep us sharp; and in what appears to be a feedback loop, the mere act of learning reinforces the effect.”
Also in decoding-the-brain news, Japanese scientists visually capture the creation of a zebrafish’s thought. “[W]e shouldn’t play this down: this is a fundamental leap forward in our understanding of how brains work.”