Uncategorized
- Climate
Concerns about Earth’s fever
Burning fossil fuels is causing the planet to heat up, causing weather patterns to change, sea levels to rise and diseases to spread.
- Climate
Explainer: How scientists know Earth is warming
Scientists can calculate global temperatures, both present and past. Their findings show that the planet is rapidly heating up.
- Chemistry
Some 3-D printing can leave toxic taint
The ”ink” inside some 3-D printers can leave toxic traces. In tests, these chemicals harmed baby fish. But lighting could render the parts safer.
- Chemistry
Scientists Say: Osmosis
When two solutions are separated by a membrane where only the liquid can cross, the liquid will move from the side with a low concentration of dissolved materials to the side with a higher concentration. This movement has a special name.
- Animals
Profile: A human touch for animals
Temple Grandin uses her own autism to understand how animals think. The animal scientist is famous for fostering the humane treatment of livestock.
- Health & Medicine
Study equates sleepless nights with high-fat diet
Getting too little sleep has the same effect on blood sugar as eating high-fat foods, a study in dogs finds. This may set the body up for diabetes.
- Microbes
Fossils show sign of ancient vampire microbes
Scientists have found 750-million-year-old fossils of cells with puncture wounds. This appears to offer evidence that vampirelike creatures sucked them dry.
- Animals
Taking attendance with eDNA
Environmental DNA, or eDNA, tells biologists what species are in an area — even when they’re out of sight.
- Animals
Wildlife forensics turns to eDNA
Environmental DNA, or eDNA, tells biologists what species have been around — even when they’re out of sight or have temporarily moved on.
- Animals
Kangaroo farts: Not so ‘green’ after all?
Scientists had thought that kangaroo farts were environmentally friendly because they had little methane. That may not always be true.
- Chemistry
Scientists Say: Dioxide
Carbon dioxide, sulfur dioxide and zirconium dioxide all have something in common. They are all molecules with two oxygens bound to some other element.
- Earth
Table salt and shellfish can contain plastic
Bits of plastic have turned up in sea salts purchased in Chinese supermarkets. The finding suggests all sea salts may be similarly tainted. Shellfish too.
