在国际空间站庆祝圆周率日
In this image from March 13, 2023, NASA astronaut and Expedition 68 Flight Engineer Stephen Bowen holds a small pie that is festively decorated in commemoration of Pi Day aboard the International Space Station.
March 14 marks the annual celebration of the mathematical constant pi, aka the Greek letter π. Its infinite number of digits is usually rounded to 3.14, hence the date of Pi Day. For some people, the occasion marks an annual excuse to eat pizza or pie (or both), but to truly honor this wondrously useful number, a serving of mathematics is in order, too. Continuing a decade-long tradition, the Education Office at NASA’s Jet Propulsion Laboratory has cooked up a set of illustrated math problems involving real-life NASA science and engineering.
Learn more about the NASA Pi Day Challenge.
Image Credit: NASA/Warren Hoburg
这张照片摄于2023年3月13日，NASA宇航员、第68号远征队飞行工程师斯蒂芬·鲍恩在国际空间站上拿着一块装饰得很喜庆的小馅饼，以纪念圆周率日。
3月14日是数学常数Pi（又称希腊字母π）的年度庆祝日。π的无限数字通常被四舍五入为3.14，因此被称为圆周率日。对于一些人来说，这个日子是每年吃披萨或派（或两者兼吃）的借口，但为了真正地纪念这个奇妙而有用的数字，一份数学服务也十分必要。NASA喷气推进实验室的教育办公室延续了十年的传统，制作了一套插图数学题，涉及NASA科学与工程领域的现实生活。
图片来源: NASA/Warren Hoburg