We're sunsetting PodQuest on 2025-07-28. Thank you for your support!

A Long Day on Uranus, a Better Method of Making Coffee and Dinos Fossils in Decline

2025/4/14

Science Quickly

AI Deep Dive AI Chapters Transcript

People

Rachel Feltman

Topics

Rachel Feltman: 我报道了关于咖啡冲泡的一项新研究，该研究发现，缓慢冲泡并从较高高度倒水可以提高咖啡的浓度和口感，关键在于最大限度地延长水与咖啡粉的接触时间，并促进充分混合。此外，我还报道了关于塑料回收的严峻现实，研究表明，全球只有不到10%的塑料使用了回收材料，大部分塑料垃圾未能得到有效回收利用，这凸显了塑料污染问题的严重性。在宇宙探索方面，我报道了利用哈勃太空望远镜对天王星自转周期的最新测量结果，比之前的估计增加了28秒。最后，我还报道了一项关于恐龙灭绝的新研究，该研究挑战了此前恐龙在小行星撞击前就已经衰落的观点，认为恐龙数量的下降可能并非真实情况，而是由于地质变化导致化石保存率降低造成的。

Deep Dive

Chapters

A new study uses silica gel particles to simulate coffee grounds and high-speed footage to analyze water flow in pour-over coffee brewing. The study reveals that a slow pour from a greater height maximizes water-grounds contact and mixing, resulting in a stronger cup of coffee with less grounds.

Pour height and slow pouring maximize water-coffee grounds contact and mixing.
A stronger cup of coffee can be achieved using less grounds by optimizing the pouring technique.
High-speed footage and silica gel particles were used to study the process scientifically.

Shownotes Transcript

Caffeine-motivated researchers find that pour height may be the key to a perfect cup of coffee. A new study of plastics finds that less than 10 percent of such products are made with recycled materials. And once the plastics are used, only 28 percent of them make it to the sorting stage—and only half of that plastic is actually recycled. Data from the Hubble Telescope show how a day on Uranus lasts longer than previously thought. Plus, we discuss how scientists thought dinosaurs were in decline even before their mass extinction—until now.

A Long Day on Uranus, a Better Method of Making Coffee and Dinos Fossils in Decline 08:51 Share

Science Quickly

Deep Dive

Shownotes Transcript

A Long Day on Uranus, a Better Method of Making Coffee and Dinos Fossils in Decline