https://gregladen.com/blog/2009/09/05/invite-this-guy-to-your-next-p/ Sun, 06 Sep 2009 21:56:06 +0000 hourly 1 https://wordpress.org/?v=6.4.8 https://gregladen.com/blog/2009/09/05/invite-this-guy-to-your-next-p/#comment-544125 Sun, 06 Sep 2009 21:56:06 +0000 http://scienceblogs.com/gregladen/2009/09/05/invite-this-guy-to-your-next-p/#comment-544125 The foam is called ‘elephants toothpaste’. There are lots of videos and info online.

]]> https://gregladen.com/blog/2009/09/05/invite-this-guy-to-your-next-p/#comment-544124 Sun, 06 Sep 2009 18:00:08 +0000 http://scienceblogs.com/gregladen/2009/09/05/invite-this-guy-to-your-next-p/#comment-544124 Details on the rapidly expanding foam, anyone?

]]> https://gregladen.com/blog/2009/09/05/invite-this-guy-to-your-next-p/#comment-544123 Sun, 06 Sep 2009 04:08:59 +0000 http://scienceblogs.com/gregladen/2009/09/05/invite-this-guy-to-your-next-p/#comment-544123 In other times I’ve seen the heavy gas demo, sulfur hexafluoride was used. Stable but very pricey.

]]> https://gregladen.com/blog/2009/09/05/invite-this-guy-to-your-next-p/#comment-544122 Sat, 05 Sep 2009 16:06:52 +0000 http://scienceblogs.com/gregladen/2009/09/05/invite-this-guy-to-your-next-p/#comment-544122 What was the heavy gas he was using? Argon?

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