How do they get the stripes into toothpaste?

Jan 4, 2019 · 22 min · Episode 449 · 21.7 MB

0:00-22:32

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How do you measure time when traveling close to light speed? How do you predict the weather? Why don't zebras look dirty? How do they get the stripes into toothpaste? Why do wheels look like they spin backwards? Why can some people move their ears? Like this podcast? Please help us by supporting the Naked Scientists