David Darling
speaker
349 appearances
2 recordings
1 series
first heard Sep 2025
last heard 1 Aug
David Darling’s voice in public audio — every appearance, attributed to the second.
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recordings per month · last 12 monthsRecordings per month over the last 12 months — 1 in all, peaking in Aug 2026 with 1.
Appearances
So locally, the sun is the largest thing.
We can then move beyond the sun out into the galaxy and we find other galaxies.
stars some of which are immensely bigger than the sun they can be a hundreds times thousands of times bigger than the sun but then what's bigger than that well the whole collection of stars that we live in which is the galaxy which is a hundred thousand light years across that takes means that it takes light a hundred thousand years to get from one side to another
Is there anything bigger than the galaxy?
Well, you get clusters of galaxies.
We live in a cluster of galaxies called the Local Group, which has 30 odd galaxies in it.
And that is 10, 15 million light years across.
Surely that's the biggest thing there is.
But no, you can get clusters of clusters of galaxies which are called superclusters.
And you can go beyond this
to great walls of galaxies which can be billions of light years across the largest structure in the universe is about 10 billion light years across so anything bigger than that well beyond that you would have to go to the universe itself which is about 90 billion light years across
I live in Dundee on the east coast of Scotland, and about 15, 20 minutes drive away from here is a little town called Cooper.
And in that town, there is this silo.
It's 200 feet high.
It's a concrete silo, and it used to be used for storing sugar beet.
It's disused now, so it's empty.
And in fact, it's not really open to the public, because it's quite dangerous.
But they do occasionally open it up, and for an interesting reason.
This silo, when you make a sound in it, for example, clap your hands, the sound takes over 30 seconds to die away.
In other words, it's a tremendously reverberant space.
Showing 121–140 of 349 · page 7 of 18
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