christopher

Neandertal Spears Were Surprisingly Deadly

发表于 2019-02-01 spears neandertal surprisingly

Javelin throwers chucking replicas of Neandertal spears were able to hit targets farther away, and with greater force than previously thought to be possible. Ch…

Biologists Track Tweets to Monitor Birds

发表于 2019-02-09 tweets adchoices biologists

Conservation biologists can track the whereabouts of endangered species by the sounds they make, avoiding cumbersome trackers and tags. Christopher Intagliata r…

Should Robots Have a License to Kill?

发表于 2019-02-24 adchoices christopher autonomous

Artificial intelligence experts, ethicists and diplomats debate autonomous weapons. Christopher Intagliata reports. Learn more about your ad choices. Visit mega…

Who Has "the Right Stuff" for Mars?

发表于 2019-02-27 astronauts adchoices autonomy

Humans traveling to Mars will be required to operate with a degree of autonomy human astronauts have never had, due to communication delays. Christopher Intagli…

Background Music Might Stifle Creativity

发表于 2019-03-05 stifle adchoices christopher

Volunteers who listened to music solved fewer word puzzles than others who worked in silence. Christopher Intagliata reports. Learn more about your ad choices. …

Sing Solo for Higher Fidelity

发表于 2019-03-19 choir fidelity sing

By tracking duetting choir singers, researchers found that when an individual singer's pitch drifts off tune their partner’s tend to too. Christopher Intagliata…

Spider Monkeys Optimize Jungle Acoustics

发表于 2019-04-05 acoustics monkeys optimize

The monkeys lower the pitch of their "whinnies" when they're far from the rest of their group, which might help the calls travel further through jungle foliage.…

Whitening Strips Alter Proteins in Teeth

发表于 2019-04-10 alters whitening proteins

Hydrogen peroxide in whitening treatments penetrates enamel and dentin, and alters tooth proteins. Christopher Intagliata reports. Learn more about your ad choi…

Gluten-Free Restaurant Foods Are Often Mislabeled

发表于 2019-04-19 mislabeled gluten adchoices

One in three gluten-free dishes tested at restaurants contained gluten—especially GF pizzas and pastas. Christopher Intagliata reports. Learn more about your ad…

U.S. Coral Reefs Do $1.8 Billion of Work Per Year

发表于 2019-05-09 reefs coral adchoices

By dampening the energy of waves, coral reefs protect coastal cities from flooding damage and other economic losses. Christopher Intagliata reports. Learn more …