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Reblogged from science-junkie  176 notes
science-junkie:

Aids: Origin of pandemic ‘was 1920s Kinshasa’
The origin of the Aids pandemic has been traced to the 1920s in the city of Kinshasa, in what is now the Democratic Republic of Congo.An international team of scientists say a “perfect storm” of population growth, sex and railways allowed HIV to spread. A feat of viral archaeology was used to find the pandemic’s origin, the team report in the journal Science. They used archived samples of HIV’s genetic code to trace its source, with evidence pointing to 1920s Kinshasa.
Read more @bbc.com

science-junkie:

Aids: Origin of pandemic ‘was 1920s Kinshasa’

The origin of the Aids pandemic has been traced to the 1920s in the city of Kinshasa, in what is now the Democratic Republic of Congo.

An international team of scientists say a “perfect storm” of population growth, sex and railways allowed HIV to spread. A feat of viral archaeology was used to find the pandemic’s origin, the team report in the journal Science. They used archived samples of HIV’s genetic code to trace its source, with evidence pointing to 1920s Kinshasa.

Read more @bbc.com

Reblogged from dannylavrence  369,751 notes
taiikawaii:

trilliansthoughts:

This miniature ecosystem has been thriving in an almost completely isolated state for more than forty years. It has been watered just once in that time.The original single spiderwort plant has grown and multiplied, putting out seedlings. As it has access to light, it continues to photosynthesize. The water builds up on the inside of the bottle and then rains back down on the plants in a miniature version of the water cycle.
As leaves die, they fall off and rot at the bottom producing the carbon dioxide and nutrients required for more plants to grow.

if you don’t think this is fucking rad then get out of my face

taiikawaii:

trilliansthoughts:

This miniature ecosystem has been thriving in an almost completely isolated state for more than forty years. It has been watered just once in that time.

The original single spiderwort plant has grown and multiplied, putting out seedlings. As it has access to light, it continues to photosynthesize. The water builds up on the inside of the bottle and then rains back down on the plants in a miniature version of the water cycle.

As leaves die, they fall off and rot at the bottom producing the carbon dioxide and nutrients required for more plants to grow.

if you don’t think this is fucking rad then get out of my face