Untapped potential exists for blending hydropower, floating solar panels — ScienceDaily

Hybrid systems of floating solar panels and hydropower plants may hold the technical potential to produce a significant portion of the electricity generated annually across the globe, according to an analysis by researchers at the U.S. Department of Energy’s National Renewable Energy Laboratory (NREL).

The researchers estimate that adding floating solar panels to bodies of water that are already home to hydropower stations could produce as much as 7.6 terawatts of potential power a year from the solar PV systems alone, or about 10,600 terawatt-hours of potential annual generation. Those figures do not include the amount generated from hydropower.

For comparison, global final electricity consumption was just over 22,300 terawatt-hours in 2018, the most recent year for which statistics are available, according to the International Energy Agency.

“This is really optimistic,” said Nathan Lee, a researcher with NREL’s Integrated Decision Support group and lead author of a new paper published

Read More
Read More

Jack Dorsey says Bitcoin and blockchain will shape Twitter’s future where ‘content exists forever’ | Currency News | Financial and Business News

Twitter CEO Jack Dorsey.


  • Bitcoin and blockchain will shape Twitter’s future through a decentralized internet standard, Twitter CEO Jack Dorsey said at the Oslo Freedom Forum 2020 last week.
  • BlueSky, a designated team tasked with developing the standard, will hire about five people to build a protocol enabling Twitter’s transition to a decentralized platform.
  • Dorsey’s renewed motivation towards a “trusted system in a distrusted environment” comes after July’s massive security breach in which hackers took over dozens of high-profile Twitter accounts.
  • “I fundamentally believe that security is something that can never be perfected,” he said. “It’s a constant race. It’s a constant push to be ten steps ahead of hackers.”
  • Visit Business Insider’s homepage for more stories.

The future of social media platform Twitter will be shaped by Bitcoin and its underlying technology, according to chief executive Jack Dorsey, who was once again endorsing a decentralized social

Read More
Read More

White supremacists believe in genetic ‘purity,’ but science shows no such thing exists

dna
Credit: Pixabay/CC0 Public Domain

Far-right white supremacist ideology is on the rise in Europe, North America and Australia. It appeals to a racist notion whereby many white supremacists see themselves as members of a “pure” race that is at risk of dilution and contamination.


Science does not support the idea of pure races with ancient origins. In the past few years, genetic sequencing of ancient and modern humans and related species has given us a flood of new information about how human populations have evolved.

The evidence reveals a history of ongoing genetic mingling, due to interbreeding between different populations and even species. Humans from different groups had children together, and even with Neanderthals and members of other now-extinct hominin species.

This mingling occurred constantly in the long process of human migration across the globe. Europeans inhabit one region of a large genetic continuum and are no more or less

Read More
Read More

White supremacists believe in genetic ‘purity’. Science shows no such thing exists

Far-right white supremacist ideology is on the rise in Europe, North America and Australia. It appeals to a racist notion whereby many white supremacists see themselves as members of a “pure” race that is at risk of dilution and contamination.

Science does not support the idea of pure races with ancient origins. In the past few years, genetic sequencing of ancient and modern humans and related species has given us a flood of new information about how human populations have evolved.

The evidence reveals a history of ongoing genetic mingling, due to interbreeding between different populations and even species. Humans from different groups had children together, and even with Neanderthals and members of other now-extinct hominin species.

This mingling occurred constantly in the long process of human migration across the globe. Europeans inhabit one region of a large genetic continuum and are no more or less “pure” than any other

Read More
Read More