To understand how much thinking a brain can do, look at how much blood — and therefore how much energy — it uses.
The coronavirus currently sweeping across China has all these characteristics. It can pass directly from one human to another. It takes up to 14 days to fully incubate. And, according to Chinese authorities, long before an individual becomes symptomatic, he or she is contagious.
There are also other facts concerning this virus that should give us pause. The only bio lab in China at which work can be done on viruses of this type is located just outside the city of Wuhan – the epicenter of the growing epidemic. The coronavirus is also known to be of interest to Chinese bio-researchers, and, in fact, last year Chinese intelligence personnel were implicated in the theft of coronavirus from a Canadian lab and the transport of the organism to China.
None of that is conclusive. None of that tells us definitively that the virus is manmade or even that humans had any part in its release. The leading theory is that the virus entered the human population from a market in Wuhan where animals known to carry the coronavirus are sold as food. That remains, as of this writing, the most likely explanation for what is now happening.
The US Air Force’s (USAF) XQ-58A Valkyrie low-cost unmanned air vehicle (UAV) demonstrator has completed its fourth flight at Yuma Proving Ground, Arizona.
The Air Force Research Laboratory (AFRL) has partnered with Kratos Defense & Security Solutions to develop the demonstrator.
It is part of the research laboratory’s Low Cost Attritable Aircraft Technology portfolio.
The new coronavirus is spreading faster than SARS — and it may be because it can be passed on before a person shows any sign of symptoms.
NASA is sharing information about its myco-architecture program, in which experimental fungus-based building technologies could be the feasible future of Mars habitats. “Science fiction often imagines our future on Mars and other planets as run by machines, with metallic cities and flying cars rising above dunes of red sand,” NASA says. “But the reality may be even stranger.”
The myco-architecture (myco is the prefix meaning “fungus”) NASA is excited about isn’t only a new way to make furniture, although it can do that, the agency says. Mushroom House—not its real name—is an integrated habitat with layers. The tough, complex fibers made by fungal mycelia are building blocks of furniture, interior walls, and the innermost layer of the outer shell.
We pause to honor these three men, lost 53 years ago today, who paved the way for future giant leaps in space exploration.
Gus grissom, ed white and roger chaffee: apollo 1.
The glial cells of the nervous system have been eclipsed in importance by neurons for decades. But glia are turning out to be central to many neurological functions, including pain perception.
While not as strong as concrete, the bricks could reduce the CO2 footprint of a building, self-heal, and even reproduce.
[Photo: University of Colorado Boulder College of Engineering and Applied Science].
Concrete and steel come with massive emissions. So let’s ditch them and build towers out of wood. Yes, wood.
Grey hair seems to be driven by stem cell exhaustion, one of the suggested reasons we age. One researcher believes we can turn back the clock on greying hair.
Melissa Harris’s research points to a new paradigm for hair graying. “We thought that once you go gray the stem cells are all lost — there’s no going back,” Harris said. “But presumably they can be reactivated.”
