My writing here has lapsed again, because unfortunately when things get crazy this activity has to be the first one to go. (Well, that and the volunteering, which I have had to give up for the time being.) My anxiety got out of control last week for the first time in months, and […]
Continue Reading...I. Atomic Mass and Atomic Number
We saw at the end of the last lesson that protons and neutrons each weigh approximately one atomic mass unit (amu, unit “u”), while electrons in comparison weigh only 1/2000th of that. Formally, an amu is defined as the exactly 1/12 the mass of carbon-12. Let’s look at how atomic […]
I am not generally one of those people who gets flashes of inspiration in the middle of the night or in their dreams or things like that. Even when I’m obsessive about an idea for an experiment or a writing project I’m just not the notebook on the nightstand type. However, this morning I woke […]
Continue Reading...Right about now in any intro chemistry course, you could you could be forgiven if you thought you dozed off and sleepwalked into the history class next door. Most books choose to introduce the fundamental subatomic particles by putting them in the context of their discoveries.
I. Early Chemistry
For example, In 1774, Antoine Lavoisier proposed the […]
I’m gonna give a thumbs down to Bobby Jindal. Last night he said:
“[The economic stimulus package] includes $300 million to buy new cars for the government, $8 billion for high-speed rail projects, such as a ‘magnetic levitation’ line from Las Vegas to Disneyland, and $140 million for something called ‘volcano monitoring.’ Instead of monitoring volcanoes, […]
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