Naked Science Forum

Non Life Sciences => Physics, Astronomy & Cosmology => Topic started by: thedoc on 07/03/2016 12:50:01

Title: If there is light and no dark, what could be the third thing in the universe?
Post by: thedoc on 07/03/2016 12:50:01

Arun asked the Naked Scientists:
   If there is light and no dark, what could be the third thing in the universe?
What do you think?

Title: Re: If there is light and no dark, what could be the third thing in the universe?
Post by: Bill S on 07/03/2016 12:56:49

Hi Arun, I don't understand the question.  That's not unusual [:)], but I think you might need to be a bit more specific.

Title: Re: If there is light and no dark, what could be the third thing in the universe?
Post by: alancalverd on 07/03/2016 13:32:10

The Other Thing.

Title: Re: If there is light and no dark, what could be the third thing in the universe?
Post by: Colin2B on 07/03/2016 14:33:47

Forget the third thing, you need to find out what the second thing would be?

Title: Re: If there is light and no dark, what could be the third thing in the universe?
Post by: evan_au on 08/03/2016 09:56:22

Quote from: Arun

If there is light and no dark

To expand on Colin's answer: Dark is the absence of Light.
So you have only described one thing in the universe (Light).

What is the second thing? (to a materialist, maybe matter?)

Title: Re: If there is light and no dark, what could be the third thing in the universe?
Post by: Colin2B on 09/03/2016 09:00:50

Quote from: evan_au on 08/03/2016 09:56:22

What is the second thing? (to a materialist, maybe matter?)

I like that answer. Once you get solid matter you get a shadow, hence dark.
So dark is now the 3rd thing :-)