gardening Definition and 2 Threads

I am trying to create a reasonably self sustainable watering system for the plants on my work window sill. Currently I have a 12L bottle (half empty) which (via wicking/capillary action) is watering x2 tomato plants, x1 courgette plant, x1 sweet pepper plant, and it is all going very well...

My solar cooker is a DIY proof of concept. Ideally it should be made with a metal frame but I can't do that so it is wood with protective aluminum foil. The idea is to concentrate the light in a 6 inch diameter ball near the bottom of the cooking pot. It is called Sun Scoop because even...