WRO关键词检索结果

联邦研发能带来多少回报?

How Much Does Federal R&D Pay Off?

联邦政府资助的研发对经济有多大好处? Sheila Campbell、Jaeger Nelson、Eli Schrag、Heidi Williams 和 Caleb Wroblewski 在“估计联邦资助研发的经济影响”(国会预算办公室,工作文件 2026-08,2026 年 7 月)中通过一些方式回答了这个问题。 (全面披露:在她的其他角色中,威廉姆斯是……的编辑……继续阅读联邦研发有多少回报?这篇文章《联邦研发有多少回报?》首次出现在《Conversable Economist》上。

这条 400 岁的鲨鱼可能掌握着保护人类视力的秘密

This 400-Year-Old Shark May Hold the Secret to Preserving Human Vision

加州大学欧文分校的一项研究确定了一种 DNA 机制,可以帮助这些鲨鱼在几个世纪里保持视力。在加州大学欧文分校办公室的电脑屏幕上,多罗塔·斯考龙斯卡·克劳奇克 (Dorota Skowronska-Krawczyk) 看着一条格陵兰鲨在黑暗的北极水域中漂流。它的身体在黑暗中缓慢移动,但引起她注意的并不是鲨鱼的大小 [...]

‘Simply Wrong’: The B-1B Lancer Is Always Called a Nuclear Bomber — the U.S. Air Force Welded That Capability Away Years Ago

‘Simply Wrong’: The B-1B Lancer Is Always Called a Nuclear Bomber — the U.S. Air Force Welded That Capability Away Years Ago

询问几乎任何人,他们都会告诉您 B-1B 在 20 世纪 90 年代成为传统飞机。真正的结局涉及焊炬、切断的电线、莫斯科的条约展览,以及每年仍然在美国航线上行走的俄罗斯官员,以确认机队中最快的轰炸机仍然保持原来的样子。

共和国没有批准自己

The Republic Doesn’t Ratify Itself

Our nation is turning 250. The anniversary will summon the usual rhetoric about an inheritance handed down.但继承恰恰是错误的比喻。共和国的创始人并没有继承共和国;而是继承了共和国。 they argued it into being and asked their fellow citizens to say yes. Every generation since has faced the same question, whether or not anyone bothered to

充满希望的结局:给予者的最后一课

Hopeful Endings: The Giver’s Last Lesson

Great teachers, like Anne Sullivan, embrace optimism and strive to nurture it in their students. Born just after the Civil War, a childhood disease left Anne partially blind. Overcoming that obstacle, she graduated from college and entered Helen Keller’s life as her teacher. Helen came to adopt Anne