A difficulty arises when we come to potassium. Potassium has an atomic number of 19. For potassium and calcium, the 4s orbital dips in energy below the 3d orbitals, and so electrons go into the 4s ...

We find that it is the 4s orbital electrons that are ionised first before the 3d orbitals. We have to conclude that, ironically for the d-block elements, the 4s orbitals are in fact higher in energy ...

On February 4, 1995, astronauts aboard the space shuttle Discovery launched an itty bitty satellite called an Orbital Debris ...

Space infrastructure company Loft Orbital has raised $170 million in Series C funding co-led by Tikehau Capital and Axial Partners. Notably, the amount of the Series C financing is greater than ...

Space Firm Loft Orbital Raises $170 Million To Scale Up Launches Startup sells satellite space, aims to increase launches US-based company announces plans to enable AI on satellites ...

The first test flight of Blue Origin’s huge New Glenn rocket could have major implications for long-term economics of the space industry, say experts. Back To Top ...

The rivalry between the world's two richest men is going cosmic. After Jeff Bezos's Blue Origin nailed its first-ever orbital flight, Elon Musk's SpaceX is seizing back the spotlight on Thursday ...

Even once researchers can reliably get more power out of a fusion reaction than they put in, they'll still need to overcome engineering challenges to scale up fusion energy. The experiment ...

Superconductors can carry electricity without losing energy, a superpower that makes them invaluable for a range of ...

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Why Do Plants Transport Energy So Efficiently and Quickly? Feb. 4, 2025 — Photosynthesis -- mainly carried out by plants -- is based on a remarkably efficient energy conversion process.