PickVidsBest Physics & space (other) Videos
「Physics & space (other)」下面有11部被不同的人、在不同月份推荐过的视频。挑的时候先看对象：入门0部，适合还没学过的人；进阶0部，适合已经懂术语的人；普通向11部，按兴趣就能看；更硬的0部，留给想看推导或细节的人。这一类数量最多的是讲解，所以它们的共同点是用一个图像或类比把一个概念补上。常出现的频道包括Veritasium、Tom Scott、CGP Grey。目录给这个主题划的范围是：Other physics and space topics: science history, philosophy of physics, metrology and units, miscellaneous science lectures.如果只看三部，就从《I promise this story about microwaves is interesting.》开始，它负责把问题讲出画面；然后看《The Physics and Philosophy of Time - with Carlo Rovelli》，换一种讲法或例子；最后看《World's Roundest Object!》，留给已经有基础的人。页面按每页24部切开，顺序看的是被推荐跨越了多少个月，不是播放量。每条标题下面那一句是这部片子自己的内容说明，用来区分它在讲定义、过程、演示还是观点。点进去能看到推荐原话、原文链接和适合谁看。看的时候把强烈推荐当成有人明确叫你去看，把引用当成只是拿来举例，把批评留下来对照，不要把每条评论都当成同一力度。
I promise this story about microwaves is interesting.
Tom Scott investigates the claim that the microwave was invented to heat hamsters, and interviews James Lovelock about freezing and microwave-thawing hamsters in the 1950s.
The Physics and Philosophy of Time - with Carlo Rovelli
Physicist Carlo Rovelli gives a public lecture at the Royal Institution on how our understanding of time has changed, from Boltzmann and Einstein to quantum theory and loop quantum gravity.
World's Roundest Object!
Veritasium explains the effort to redefine the kilogram, which was still defined by a physical artifact, and how a near-perfect silicon sphere from the Avogadro project helps.
How We're Redefining the kg
Veritasium explains why the kilogram is being redefined in terms of Planck's constant rather than a physical metal artifact.
The world depends on a collection of strange items. They're not cheap
Veritasium visits NIST to explain Standard Reference Materials, the carefully characterized items such as peanut butter used to calibrate instruments and keep measurements consistent.
Adam Savage's Epiphany on the Science of Measurement!
Adam Savage shows a set of Mitutoyo ceramic gauge blocks and uses them to explain metrology, the science of measurement.
A4 Paper Is Too Perfect
CGP Grey explains the elegant ratio of A4 and the metric paper sizes, then zooms out across scales from the Planck length to the observable universe.
You Lose an Hour of Sleep to Save $4
CGP Grey explains the mess of Daylight Saving Time, including its dubious energy savings and the odd cases like Arizona that opt out.
Making an international standard cup of tea
Tom Scott follows the ISO 3103 / BS 6008 standard to make an international standard cup of tea, using specialist tasting equipment.
The helical model - our solar system is a vortex
An animation presenting a non-standard helical or vortex model of the solar system, in which the planets trail the Sun through space instead of orbiting in flat circles.
Is America Actually Metric?
Veritasium explains that the US signed the Metre Convention in 1875 and that all US customary units are officially defined in terms of metric standards.