After doing a "Chemistry is lit!" design with a Bunsen burner, I wanted to a version for physics, so I looked into the physics of flames (which are very complicated!). I found out about the experiment by Paul Ronney, a combustion researcher, which shows the way flames behave in microgravity. Flames behave differently in microgravity, they are spherical. This design shows a cute flame in Earth's gravity versus a flame in microgravity, with a speech bubble declaring "Physics is lit!"
Where to buy online
Direct from us here - see products featuring this design.
You can find the design on t-shirts in most stores, but also on other products depending on the store (e.g. hoodies, mugs, stickers, notebooks, phone cases, greeting cards, cushions, socks etc).