PinnedDavid StackHow to Stop a Climate Crisis: Shut Off the GasIf you want to help stop global warming here’s what you need to do as soon as possible.Apr 22, 20211Apr 22, 20211
David StackGrowing Food…Without SoilHave you ever wondered where your food comes from? Think it all grows in the ground?May 5, 2017May 5, 2017
David StackWhy I Grow Plants In WaterAround the time I was working at NASA, I learned about a way to grow plants in water without using soil.Apr 29, 20171Apr 29, 20171
