Science, questions, and room to think.

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Thoughtful reading across science, with room to explore a question, follow an explanation, and notice the connections between familiar things.

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An open book, magnifying lens and a brass sphere in warm afternoon light. — One small detail.
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Mind & BodyNov 7, 2026

10-Month-Old Fever: Temperature Thresholds, Hour-by-Hour Timeline, and When to Call

A fever in a 10-month-old is a rectal temperature of 100.4°F (38.0°C) or higher, and it is usually a sign the immune system is working, not a disease in itself.

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Ideas for a curious mind

Physics & Chemistry

2 Types of Microscopes: Light and Electron Optics Compared

The 2 types of microscopes are light microscopes, which focus visible photons with glass lenses, and electron microscopes, which focus electrons with electromagnetic coils. Light optics resolve about 200 nm and magnify to roughly 1,000x.

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