The tie-dyed shirts really make the Mentos thing work work….
Have you read the breakthrough novel of the year? When you are done with that, try:
In Search of Sungudogo by Greg Laden, now in Kindle
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or Paperback
*Please note:
Links to books and other items on this page and elsewhere on Greg Ladens' blog may send you to Amazon, where I am a registered affiliate. As an Amazon Associate I earn from qualifying purchases, which helps to fund this site.
What was the heavy gas he was using? Argon?
In other times I’ve seen the heavy gas demo, sulfur hexafluoride was used. Stable but very pricey.
Details on the rapidly expanding foam, anyone?
The foam is called ‘elephants toothpaste’. There are lots of videos and info online.