David Lau

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Cosmology

Another victory of General Relativity ( Valentine Blog)

Once again General Relativity has declared a victory in the world of science. On Feb 11, 2016, scientists have officially claimed the discovery of gravitational waves, the last piece of phenomenon predicted 100 years ago by Albert Einstein when he… Continue Reading →

On Dark Energy

From my previous blog on the legacy of Albert Einstein, he formulated the General Theory of Relativity in 1915 and became a celebrity in the world of science. General Relativity says that mass affects the shape of space and the… 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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