Put a fruit fly larva in a spacelike vacuum, and the results arenít pretty. Within a matter of minutes, the animal will collapse into a crinkled, lifeless husk. Now, researchers have found a way to protect the bugs: Bombard them with electrons, which form a "nano-suit" around their bodies. The advance could help scientists take high-resolution photographs of tiny living organisms. It also suggests a new way that creatures could survive the harsh conditions of outer space and may even lead to new space travel technology for humans.
Snapping a picture with a nanometer-level resolution of the proboscis or muscle cells of a fruit fly isnít easyóin fact, itís deadly. Scientists have to use a scanning electron microscope, which must peer at objects in a vacuum because air molecules absorb the electrons that the microscope depends on to take the picture. Only a tiny number of creatures, such as the famously hardy tardigrade, can survive the process. Most other bugs die quickly of dehydration as the vacuum sucks the water out of their bodies.
A fruit fly larva is one such victim. But when Takahiko Hariyama of the Hamamatsu University School of Medicine in Japan and his colleagues placed the millimeter-sized larva in a scanning electron microscope and fired electrons at it, they found that the young fly wiggled in place for an hour as if everything was fine. When they put another larva in the same vacuum and let it sit there for an hour before bombarding it with the microscopeís electrons, it predictably dehydrated to death. Somehow, the electron stream was keeping the larva alive and so unscathed that it later grew to become a healthy fruit fly.
The scientists then used the microscope to peer closely at the edge of the insectsí skin. They found that the energy from the electrons changed the thin film on the larvaeís skin, causing its molecules to link togetheróa process called polymerization. The result was a layeróonly 50- to 100-billionths of a meter thickóthat was flexible enough to allow the larva to move, but solid enough to keep its gasses and liquids from escaping. "Even if we touched the surface [of the layer]," Hariyama says, "the surface did not break by our mechanical touch." It was almost like a miniature spacesuit.
Professor: Reason Itself Is A White Male Construct 2015-07-04 3:55
A philosophy and religion professor at Syracuse University gave an interview to The New York Times Thursday in which he critiqued the notion of pure reason as simply being a “white male Euro-Christian construction.”
Prof. John Caputo was being interviewed by fellow philosophy professor George Yancy for the 13th installment of an interview series Yancy conducts with philosophers regarding racial topics.
Given its emphasis on first principles ...
The Broken Window Fallacy 2015-07-04 3:48
Youtube description: This short video explains one of the most persistent economic fallacies of our day.
Jenji Kohan and the Jewish Hyper-Sexualization of Western Culture 2015-07-04 3:33
As detailed in The Culture of Critique, Freud and his followers regarded anti-Semitism was a universal pathology which had its roots in sexual repression. The theoretical basis for this can be found in Freud’s Three Essays on the Theory of Sexuality where he linked aggression to the frustration of human drives — especially the sex drive. Kevin MacDonald notes that: ...
Confederate History - Dispelling the Myths 2015-07-03 3:28
History books, the media, the school systems, etc abound in falsehoods and inaccuracies of Confederate and Southern history. This fact sheet will help to clarify and dispell some of these rampant inaccuracies.
MYTH - The War of 1861 - 1865 was fought over slavery.
FACT - Terribly untrue. The North fought the war over money. Plain ...
Gays Rights May Open Door for Pedophile Rights 2015-07-03 3:31
Democrats have attempted to normalize pedophilia as a sexual orientation.
A recent Supreme Court ruling on same-sex marriage may soon allow pedophiles to argue they are suffering discrimination.
‚ÄúUsing the same tactics used by ‚Äėgay‚Äô rights activists, pedophiles have begun to seek similar status arguing their desire for children is a sexual orientation no different than heterosexual or homosexuals,‚ÄĚ writes Jack Minor ...