Cant take the heat? Then you might need ceramics! This is one of many interesting videos in a series called “Material Marvels” that you can watch on Yale University’s YouTube channel. In this particular video, Associate Professor of Mechanical Engineering & Materials Science at Yale Dr. Ainissa Ramirez, explains how sand, in the form as silica, can be used to make heat absorbing ceramic tiles, such as those used on the space shuttle. With its low heat conductivity, it can be touched by unprotected fingers mere centimeters from where a blow torch has heated it to glow red-hot. Now that is good insulation!
If you plan to create something that will run on electricity and want it to be environmentally friendly, there is no better option then using solar cells! This is one of many interesting videos in a series called “Material Marvels” that you can watch on Yale University’s YouTube channel. In this particular video, Dr. Ainissa Ramirez shows us the insides of a solar cell, and how it transforms light into electricity. Worth know about for anyone making electric gadgets.
This is another tutorial video from Yale University Youtube channel‘s series “Science Xplained“, this time Dr. Ainissa Ramirez show us the benefits of so-called “smart” liquids like ferrofluids. It is used in many ways, some of which is: sealing hard-discs and curing cancer. In this video you can learn how to make your very own ferrofluid to play around with. Enjoy!
While making their wooden swords look like they were made from metals, Adam Savage doesn’t just demonstrates to Norm from Tested.com how aluminium tape can give any object that nice metallic look, he also show us how it can be buffed with steel wool to make it look “brushed”. We also get to see how plumbers epoxy work, and how to cut neat leather laces with minimum work, using a leather lace cutter. Finally, Adam reveals what drill bit is his favorite and why.
In this video from Yale University’s YouTube series “Science Xplained“, Dr. Ainissa Ramirez explains how freezing works, and how to make the best ice cream by using liquid nitrogen. If you don’t have access to liquid nitrogen, she also talks about how you can use a mixture of salt and ice to cool down the ice cream mixture to lower temperatures. We also learn why ice cream doesn’t taste as good if it has melted and then been frozen again, and why avalanches happens.