David Lau


November 2015

Reflection on Thanksgiving

Here I am in Las Vegas again to spending Thanksgiving Holidays. I must have been in Las Vegas for more than 60 times in the last 20 years, making this City of Sin my second home town where I am… Continue Reading →

Celebrating Einstein’s Legacy —–General Relativity

We have more reason to celebrate in the month of November besides Thanksgiving holidays. This year is the 100th birthday of Einstein’s theory of General Relativity. Since I will be in Las Vegas during the holiday season, there’s more reason and a… Continue Reading →

Fine-structure constant

In physics, the fine-structure constant, also known as Sommerfeld’s constant, is a fundamental physical constant characterizing the strength of the electromagnetic interaction between elementary particles. This constant is expressed by combining several other fundamental constants of nature:        … Continue Reading →

On Dark Matter

What can I say other than I am a strong supporter for dark matter theory. Dark matter is thought to make up 80% of the matter in the universe and because they do not interact with ordinary matter except via… Continue Reading →

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