For example, a red apple is reflecting red light and absorbing all other colors of light. The more light the object absorbs, the more heat absorbed since light is energy. If you consider it a color, black absorbs the most heat. A black object absorbs all wavelengths of light and reflects none. Objects that are white, on the other hand, reflect all wavelengths of light and therefore absorb the least heat.
First Velcro was made out of cotton by George De Mestral, although this cotton wasn't as strong as De Mestral had thought it to be. Today Velcro is made of various materials ranging from Nylon and pollyester to stainless steel and Synthetic fibers!
Thumbs up for the Ger. This is all coming out of us being really impressed with Dave and Phoebeâs DIY yurt which came to Milkwood last Easter. This was a 100% hand-made, home-made Ger constructed at a cost of under $3000 all up, made by a non-carpenter (read: he paid a carpenter to do the tricky bits). Which sounds pretty good to me.