On Air Now
In Conversation With Steve Allen 6am - 7am
27 February 2018, 16:24
The Mystery Hour
Name: Christian, Bury St Edmunds
Question: How many Lumens is the sun?
Name: Keith, Clacton-on-Sea
Qualification: Listens to Dara O’Brien and Brian Cox’s astrology programme.
Answer: There are 10,000 lumens per square foot of sun. This makes around 6840000000000000000000000000 lumens in total.
A lumen is the amount of light emitted from one candle.