Before a spectrometer can do any useful work, it needs to be calibrated to identify wavelengths correctly. This is usually done by detecting several characteristic peaks or dips in a well-known ...

Sat, Oct 18, 2025 People have been urged to think twice before throwing old light bulbs out as experts remind households that ...

A “REAL-life vampire” says the sun could “actually kill her”, as her skin breaks out in oozing third-degree burns and ...

A surprising new study has revealed how 40 years of work to repair the ozone layer may end up causing its own climate change ...

The animal kingdom is full of creatures that could give any comic-book superhero a run for their money. This includes birds ...

PLQY is a measure of how efficiently a material converts absorbed light into emitted light. It’s the ratio of the number of ...

You can moisturise religiously, wear SPF and sleep on silk pillowcases, but if your hands are sun-spotted, dry or creased, ...

W HMIs suggest that there might soon be a dwindling of people in the world who remember what one looks like, at least among ...

Lomography’s new Lomo MC-A is a 35 mm film camera with a metal body, 32 mm f/2.8 lens, manual and auto modes, and classic ...

Sweet potatoes are rich in beta‑carotene, which the body converts to vitamin A, supporting mucous membranes in the nose, throat and lungs. A medium baked sweet potato (about 200 g) can provide more ...

Considering that most people’s biggest investment is their homes, it makes sense for them to prioritize proper upkeep ...

When it comes to skin care, most of us focus on our faces, slathering on hydrators, moisturisers, and serums galore for a ...