He conducted experiments with arsenic acid as a discharge agent and filed patents for the employment of arsenic and phosphoric acids in discharge printing of fabrics. In 1844 he reportedly was the first to discover red phosphorus; his findings taking place prior to Anton Schrötter's discovery...
He helped develop synthetic rubber during World War II, he was involved in early experiments of zone melting, he is credited with devising the method of transistor production yielding diffusion transistors, he produced some of the first solar cells with high efficiency, and...
Mary Lyon- (USA, 1797–1849) Mary Lyon founded Mount Holyoke College in Massachusetts, one of the first women's colleges. At the time, most colleges taught chemistry as a lecture-only class. Lyon made lab exercises and experiments an integral part of undergraduate chemistry education. Her meth...
Many of these had to do with science, chemistry, but others---the most famous experiments---had to with people and their behavior. On that weekend the subject was really difficult: freedom. How can one conduct an experiment on freedom? On the Monday that followed, the students returned ...
At the ageof ten, Edison had already built a chemistry lab(化学实验室) for himself. Inthe lab, he did a large number of experiments. Ever since then, he neverstopped searching for new and better ways to do things.根据文章内容选择正确答案。()1. Edison was born in thecentury.A....
But when the kids did some experiments in class last winter, they saw that the litmus paper didn’t turn very blue with base matter. It's hard to get a clear result. Will there be a better indicator than litmus paper? The three kids decided to try and find out!
Lives of the Scientists: Experiments, Explosions (and What the Neighbors Thought) Scientists have made discoveries that change our world, but they were also real people who irritated their neighbors and had favorite foods. The book detai... Aylea,Stephens - 《Childrens Book & Media Review》 被...
William Henry Born: December 12,1774 Studied medicine 1795 in Edinburgh He was elected a Fellow of the Royal Society in February 1809, having been awarded their prestigious Copley Medal in 1808 Died: September 2, 1836 Thank you for watching I hope you enjoyed it!
But when the kids did some experiments in class last winter, they saw that the litmus paper didn't turn very blue with base matter. It's hard to get a clear result. Will there be a better indicator than litmus paper? The three kids decided to try and find out! How? They went to ...
2. Science Experiments should focus on teaching us about Reality, i.e. learning critical thinking skills such that we can determine the truth for ourselves (not learning things to pass exams). 3. Science Fair Projects and Experiments need not be complex. We all exist in reality so any simpl...