by msander | Dec 13, 2018 | Gr 9-10 Science, Gr. 11-12 Chemistry
Flame-retardant chemicals can slow the spread of fire in homes and garments. But are these compounds naughty or nice? This week on Reactions, we ask whether old Saint Nick might want a flame-retardant suit…or choose to opt out. More PBS Digital Studios Goodness...
by msander | Dec 24, 2017 | All Science Teachers
By Bob McDonald. When you consider the distance Santa must travel on Christmas Eve to reach the homes of all the good children in the world, he would have to travel close to the speed of light. But he may have found a way around the problem by warping the space around...
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