New Scientist: Sea squirt fragment regenerates entire body
Out of 95 fragments they examined, 80 underwent whole body regeneration (WBR). Cells first grouped into hollow spheres, then cell layers in-folded and organs developed until after two weeks an adult sea squirt had grown, capable of sexual reproduction. -- “To think that even one attached blood vessel survives storm damage and regenerates the entire colony,” says Reshef. “What an advantage this provides!”
Bacteria Save Your Data, Make Multiple Backups
The first time I read about this idea was in an excellent series of fantasy novels by Barbara Hambly. In her 1982 Darwath trilogy, she writes about how wizards of several thousand years ago succeeded in tying information to the DNA of selected individuals. In the story, several people from 1980's California find themselves transported across the Void to another planet and the Realm of Darwath. They face a deadly species of queerly magical beings - the Dark - who destroyed civilization thousands of years ago. Everything that was made of paper (like books and records) were burned to stave off attacks by the Dark. Tying memories to a few suitable bloodlines was the only way to preserve a record of that period that would endure.
Paranoid androids 'in 10 years'
Other scientists have found that by replicating the feeling of hunger, their robots will realise their batteries are getting low and seek to "feed" themselves by recharging.
Mathematical model accurately predicts which couples will divorce
The key turned out to be quantifying the ratio of positive to negative interactions during the talk. The magic ratio is 5 to 1, and a marriage can be in trouble when it falls below this. The mathematical model charts this interaction into what the researchers call a "Dow-Jones Industrial Average for marital conversation." "When the masters of marriage are talking about something important, they may be arguing, but they are also laughing and teasing and there are signs of affection because they have made emotional connections," Gottman said.
The Scientist: What if Humans were Designed to Last? - Kuinka korjata ihmiskehon vikoja. Lisäksi We Die Too Soon
Ten Good Reasons To Get Out Of Bed In The Morning
There we have it, the final reason to get your ass out of bed: we need you. We need you on our side - the side of hope and action - and we need you now. Every decade is a scientific milestone, which means that every year counts as well, and every month, every week, every day. Indeed, at this point, every act of our lives is either a step toward the achievement of all our visions of glory or a step back toward the stupidity and self-pity that can destroy us.
Ja kiitos jälleen Alarille linkkivinkeistä.