Arsenic-Eater Redefines Life
A bacterium found in the arsenic-filled waters of a Californian lake is poised to overturn scientists' understanding of the biochemistry of living organisms, says Nature.
A bacterium found in the arsenic-filled waters of a Californian lake is poised to overturn scientists' understanding of the biochemistry of living organisms. The microbe seems to be able to replace phosphorus with arsenic in some of its basic cellular processes — suggesting the possibility of a biochemistry very different from the one we know, which could be used by organisms in past or present extreme environments on Earth, or even on other planets. Scientists have long thought that all living things need phosphorus to function, along with other elements such as hydrogen, oxygen, carbon, nitrogen and sulphur.
Malcolm Gladwell teaches "Get over yourself and get to work" for Big Think Edge.
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In some Asian countries, what's in your blood determines who you are.
- In Japan and South Korea, there is a common belief that blood types determine character much in the same way Western countries believe in the zodiac.
- While there's little scientific evidence to back up the claim, the blood type theory of personality remains wildly popular.
- However, how this theory came to be has its roots in a dark history.
Both panoramic and detailed, this infographic manages to show both the size and distribution of world religions.
- At a glance, this map shows both the size and distribution of world religions.
- See how religions mix at both national and regional level.
- There's one country in the Americas without a Christian majority – which?
We take fewer mental pictures per second.
- Recent memories run in our brains like sped-up old movies.
- In childhood, we capture images in our memory much more quickly.
- The complexities of grownup neural pathways are no match for the direct routes of young brains.
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