For Dr Gitonga, the key question is not whether to pursue hydrogen, but how to do so. She argues that the most significant risk for Africa lies in exporting raw hydrogen, a hazardous, ...

Students enrolled in chemistry at Danvers St. John Preparatory School -- The Prep -- are accustomed to a traditional science classroom dynamic. They balance mastering new concepts and solving chemical ...

Laboratories turned to a smart workaround when COVID‑19 testing kits became scarce in 2020. They mixed samples from several ...

RBSE Class 12 Chemistry Topper Answer Sheet helps students preparing for the 2026 Rajasthan Board exam. Check and download ...

Mass balances are an essential tool in chemical engineering, environmental studies, and other fields that deal with calculations involving the flow of materials. In simple terms, a mass balance ...

Chemical equations represent the rearrangement of atoms during a chemical reaction. A balanced equation reflects the law of conservation of mass: the number of atoms of each element must be the same ...

Rick Tocchet isn’t one for chaos. He likes order, structure, and accountability. But he’s also not afraid to make adjustments when the situation calls for it — and Tyson Foerster’s injury has given ...

The Q-matrix serves as a bridge that links items and attributes, and its accuracy affects the results of cognitive diagnosis. Inaccuracy of the Q-matrix are a common issue frequently encountered in ...

Virginia has yet to meet its goals of reducing nitrogen and phosphorus in the Chesapeake Bay. Experts say nutrient management in agriculture can help. That’s the idea of making sure nitrogen, ...

Before 2.0 (#196), please update this issue to list any meaningful changes that happen in the simulation (think what would a teacher or ed tech partner need to know that would impact their planned ...

Fifty years after Monty Python and the Holy Grail redefined comedy, stars Michael Palin and Terry Gilliam look back on the freedoms – and limitations – that shaped the film. An independent British ...