Listening to a 50-year old cassette on a Walkman from 1998… and it sounds really good.
In 50 years from now, will any of current streaming services still be around?
@thomasfuchs and excellent tape too 👌😄 #jeanmichellejarre #oxygen
Listening to a 50-year old cassette on a Walkman from 1998… and it sounds really good.
In 50 years from now, will any of current streaming services still be around?
@thomasfuchs and excellent tape too 👌😄 #jeanmichellejarre #oxygen
Complex #life began to develop earlier, and over a longer span of time, than previously believed.
Nee findings indicate that complex organisms evolved long before there were substantial levels of #oxygen in the #atmosphere, something which had previously been considered a prerequisite to the #evolution of complex life.
The #earth is approximately 4.5 billion years old, with the first #microbial life forms appearing over 4 billion years ago.
These organisms consisted of two groups – #bacteria and the distinct but related #archaea, collectively known as #prokaryotes.
Prokaryotes were the only form of life on earth for hundreds of millions of years, until more complex eukaryotic cells including organisms such as #algae, #fungi, #plants and #animals evolved.
Previous ideas on how and when early prokaryotes transformed into complex #eukaryotes has largely been in the realm of speculation. Estimates have spanned a billion years, as no intermediate forms exist and definitive fossil evidence has been lacking.
By collecting evidence from multiple #gene families in multiple biological systems and focusing on the features which distinguish eukaryotes from prokaryotes, researchers were able to begin to piece together the developmental pathway for complex life.
They obtained evidence that the transition began almost 2.9 billion years ago – almost a billion years earlier than by some other estimates – suggesting that the nucleus and other internal structures appear to have evolved significantly before #mitochondria.
The process of cumulative complexification seems to have taken place over a much longer time period than previously thought.
#biology
https://www.bristol.ac.uk/news/2025/december/complex-life-developed-earlier-than-previously-thought-new-study-reveals.html
Paper by Kay et al. (2025): https://www.nature.com/articles/s41586-025-09808-z
Complex #life began to develop earlier, and over a longer span of time, than previously believed.
Nee findings indicate that complex organisms evolved long before there were substantial levels of #oxygen in the #atmosphere, something which had previously been considered a prerequisite to the #evolution of complex life.
The #earth is approximately 4.5 billion years old, with the first #microbial life forms appearing over 4 billion years ago.
These organisms consisted of two groups – #bacteria and the distinct but related #archaea, collectively known as #prokaryotes.
Prokaryotes were the only form of life on earth for hundreds of millions of years, until more complex eukaryotic cells including organisms such as #algae, #fungi, #plants and #animals evolved.
Previous ideas on how and when early prokaryotes transformed into complex #eukaryotes has largely been in the realm of speculation. Estimates have spanned a billion years, as no intermediate forms exist and definitive fossil evidence has been lacking.
By collecting evidence from multiple #gene families in multiple biological systems and focusing on the features which distinguish eukaryotes from prokaryotes, researchers were able to begin to piece together the developmental pathway for complex life.
They obtained evidence that the transition began almost 2.9 billion years ago – almost a billion years earlier than by some other estimates – suggesting that the nucleus and other internal structures appear to have evolved significantly before #mitochondria.
The process of cumulative complexification seems to have taken place over a much longer time period than previously thought.
#biology
https://www.bristol.ac.uk/news/2025/december/complex-life-developed-earlier-than-previously-thought-new-study-reveals.html
Paper by Kay et al. (2025): https://www.nature.com/articles/s41586-025-09808-z
With all the COVID conscious people wielding #CO2 monitors, I'm wondering:
Has anyone grown enough #plants in their home to make a measurable, consistent difference in the CO2 levels indoors?
I assume plants won't do much to filter airborne pathogens, so perhaps this wouldn't be helpful for controlling infectious disease. I'm just wondering for the purpose of making closed ecological systems, and how hard it is to make a bottle garden that would make enough #oxygen to support humans.
It's widely reported that #China has been building out huge amounts of #solar photovoltaic generation, and of course that is a big contributor to slowing #ClimateChange. But what I discovered to my surprise this week is that China is also #Reforesting faster than almost anywhere else on Earth, which is an equally important contributor, and also contributes positively to the #Oxygen cycle.
It's widely reported that #China has been building out huge amounts of #solar photovoltaic generation, and of course that is a big contributor to slowing #ClimateChange. But what I discovered to my surprise this week is that China is also #Reforesting faster than almost anywhere else on Earth, which is an equally important contributor, and also contributes positively to the #Oxygen cycle.