So, so far I've talked about rules for insects and for fish and for robots, 那么到目前为止，我谈到了昆虫、鱼群还有机器人的各种行为规则， but what about the rules that apply to our own human collective? 但是那些适用于人类集体的规则呢？ And the las
【Speech Video】 The President hails Paul McCartney’s contribution to popular music and song during a ceremony to present the singer with the Library of Congress Gershwin Prize. 【Transcript】 Thank you.
Helping every American with autism achieve their full potential is one of this administration’s top priorities. At the U.S. Department of Health and Human Services, we continue to strive to meet the c
You know what else I thought I knew about being a stay-at-home parent? 你们知道还有哪些全职育儿的体验吗？ I thought that all I had to do was take them to the park once a week, 我以为只要每周带他们去一次公园就行了， because if I took the
