Re: Fridge out Reply #25 – January 29, 2020, 03:29:31 am Kent--Thx for the interesting topic of aerogel.Larry--Thx for the video & commentary. Wow, what I missed with HS Bio & Chem classes that never did any labs--I've heard our school now has a dedicated materials science class where kids can get turned onto the creativity, serendipity, & fun of applying science in real life.I do love the discussions that crop up amongst the Wizards.Lynne