科学与环境
What an ancient volcanic eruption teaches us about resilience today
来源: Phys.org - latest science and technology news stories · 发布于
When a massive environmental disaster strikes, do societies simply collapse and disappear? Or do people find a way to adapt, rebuild and recover?
When a massive environmental disaster strikes, do societies simply collapse and disappear? Or do people find a way to adapt, rebuild and recover?
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Scientists uncover the 2.3-billion-year-old secret that helped keep Earth habitable
Scientists may have solved a 2.3-billion-year-old mystery about how Earth maintained enough oxygen to support life. Ancient rocks reveal that phosphorus recycling in the oceans created a self-sustaining cycle that helped keep oxygen levels high, even as the planet underwent drama
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Not building third runway would be 'huge missed opportunity', warns Heathrow boss
Thomas Woldbye tells the Today progamme it would be "good to know" the government's position on the project, after comments made by the prime minister.
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Quantum magic state cleanup cuts errors 40-fold in first successful hardware test
Qubits, the quantum equivalent of digital bits, are fragile and prone to errors. That makes building reliable quantum computers extremely difficult. One fix has been to use traditional magic state distillation, which filters out flaws, but it is extremely resource-intensive.
Phys.org - latest science and technology news stories ·
Hand-cranked device tells blood type and red cell levels in 1 minute
When someone is badly injured, doctors urgently need two facts: the patient's blood type, so that a transfusion is safe, and their hematocrit, the share of the blood made up of red blood cells, which reveals blood loss or anemia. Hospitals measure both with large machines that ne
Phys.org - latest science and technology news stories ·
Salt crystals could hold clues to life beneath Enceladus's ice
The ocean beneath Saturn's moon Enceladus lies under kilometers of ice, but some of its contents do reach the surface. Jets near the south pole spray out water vapor and icy particles, offering a way to investigate the hidden ocean without drilling down to it.
Phys.org - latest science and technology news stories ·