Tag Archives: explanation

The Window into Planck-Scale Physics

He that breaks a thing to find out what it is has left the path of wisdom. – J.R.R. Tolkien How can we possibly develop Planck-scale physics? Since 1899 we’ve known that Planck scale is incredibly tiny. We need to go there; it’s where the real action is. New theories (such as string theory) tap […]

The Beginning of Time

When did time begin? Science now has an answer. How did time begin? For millennia this was a subject for speculation, little of it based on science. But there is now a philosophic answer. Space came first. Time began soon after space. Very soon. Here’s how. From recent measurements we know that time began 13,799,000,000 […]

The Flow of Time

Does time flow? It is a fundamental question. It has confounded physics for hundreds of years. It still does. We sense the flow of time.  Today many physicists say this is an illusion. I say they don’t understand. Physics at the very largest and the very smallest scales leads to a simple way to make […]

The Dark Matter Mystery Is Solved! LIGO’s observations show mid-sized primordial black holes are not improbable.

For years Dark Matter has confronted physics with a massive mystery. A recent article describes it as ‘the invisible substance that astronomers believe accounts for about 80% of the stuff in the universe.’ But what is it? This question has physicists searching for obscure new particles with the world’s largest machine, the Large Hadron Collider. […]

What Made the Big Bang Big? What Made the Big Bang Bang? A radical rethinking of our understanding of the universe

Two weeks ago we took a look at a question from systems engineer Muralidharan Thiyagarajan. Referring to the observation that space everywhere is expanding, he asks: ‘What creates the space?’ My answer is: At the Planck level (named for German physicist Max Planck who first described it) where space is made of incredibly tiny quanta, […]

Making Space

Precise measurements say the universe is expanding. The measurements don’t show new matter. They show new space. This leaves those who think of space as empty with a conceptual puzzle. As cosmologist Marcus Chown once said, ‘How can nothing expand?’ Muralidharan Thiyagarajan, who is a systems engineer with Infosys in Chennai, has another way to […]