background preloader


Facebook Twitter

Earth View. Forked from: [Stardust] KiraKira Waypoints. Sixty Symbols - Physics and Astronomy videos. Arsenic-loving bacteria may help in hunt for alien life. 2 December 2010Last updated at 12:23 ET The bacteria slowly incorporated arsenic into their innermost workings The first organism able to substitute one of the six chemical elements crucial to life has been found.

Arsenic-loving bacteria may help in hunt for alien life

The bacterium, found in a California lake, uses the usually poisonous element arsenic in place of phosphorus. The find, described in Science, gives weight to the long-standing idea that life on other planets may have a radically different chemical makeup. It also has implications for the way life arose on Earth - and how many times it may have done so. The "extremophile" bacteria were found in a briny lake in eastern California in the US. While bacteria have been found in inhospitable environments and can consume what other life finds poisonous, this bacterial strain has actually taken arsenic on board in its cellular machinery.

The bacteria were found as part of a hunt for life forms radically different from those we know. As unexpected Continue reading the main story “Start Quote. Humans Can Only Walk In Circles and We Dont Know Why. @ePrometheus: I propose all robots from here onward must have a shorter leg and arm.

Humans Can Only Walk In Circles and We Dont Know Why

We must prevent the uprising! @ePrometheus: The article makes no mention of whether robots will also travel in circles or not. We might still be on equal ground. Plus, I still have money on Asimov's laws. @ePrometheus: I saw a show awhile back (so things may have changed) but it said/showed robots could never drive down the road and not crash because they can't properly see shadows, depths, etc. Space. Physics of Anti-Gravity Explained in DETAIL... Legendary Video Series!!!, page 1. One Mans DIY Space Photography Has NASA Calling.

Universcale. Welcome to Discovery Education. 10 Strange Things About The Universe - Top 10 Lists. Space The universe can be a very strange place.

10 Strange Things About The Universe - Top 10 Lists

While groundbreaking ideas such as quantum theory, relativity and even the Earth going around the Sun might be commonly accepted now, science still continues to show that the universe contains things you might find it difficult to believe, and even more difficult to get your head around. Theoretically, the lowest temperature that can be achieved is absolute zero, exactly ? 273.15°C, where the motion of all particles stops completely. However, you can never actually cool something to this temperature because, in quantum mechanics, every particle has a minimum energy, called “zero-point energy,” which you cannot get below. One of the properties of a negative-energy vacuum is that light actually travels faster in it than it does in a normal vacuum, something that may one day allow people to travel faster than the speed of light in a kind of negative-energy vacuum bubble.

Relativity of Simultaneity Antimatter Retrocausality. Bizarre sea slug is half plant, half animal. The Sarcastic Fringehead fish is pretty cool. [VIDEO] Top 10 Bizarre Plants. From You can safely stick your hand in liquid nitrogen...but you probably shouldnt. How to Forecast Weather. Cell Size and Scale. From Amazing Underwater River : Cenote Angelita in Mexico. Honduran White Bats Are Fluffy Marshmallow Critters. Biology - Amazing Fish pictures.