I’m just taking a second to write a quick note: I think, personally, that the market nervousness for the Chinese ADRs is overblown. …

I’m a big follower of shipping companies. My grandfather worked on Liberty Ships during World War 2 for Bethlehem Steel, and so you might say that floating steel is in my blood. …

It’s been a while since Tesla stock has gone on sale. The worry about these “sales” is, of course, that the stock is going to keep continuing downward. Personally, although Elon Musk’s behavior is occasionally problematic and there are always deep questions as to whether electric cars are truly a…

This question really has two parts. First, let’s talk about the appearance of scars. Your skin, the epidermal layer of your body, changes significantly over time. The connective tissue underlying the skin is made up of proteins such as elastin and fibrillin, that as you age, becomes less able to…

Take a small battery, and put a switch between the positive and negative terminals. Now press the switch. What happens? If your answer is “the battery gets warm”, you might notice that what you didn’t say is “the battery moves dramatically across the surface of the table”. …

One kilo of helium what? Which hydrogen? :) Hydrogen (the single-proton, no neutron kind) doesn’t fuse directly with hydrogen to form helium. It’s a multistep reaction. See, for example, The Sun’s Energy Doesn’t Come From Fusing Hydrogen Into Helium (Mostly): 1. Proton/proton fusion into deuterium accounts for 40% of the…

For example, energy = mass * speed_of_light ** 2 instead of E = mc² The problem in your question is bias: you’ve decided that a particular practice that programmers use, namely, the plain-english naming of variables in a program to improve human readability, should be done everywhere. To illustrate it, you’ve taken a particular equation, a very simple and apparently straightforward one that appears…

Strictly speaking, you don’t. You can invest in companies or assets that produce (or are capable of producing) such commodities, because such an investment can be expected to have a return and produce a profit. You can invest in the stocks of gold miners, or timber companies, and so on…

There’s nothing tragic about approaching the speed of light. …