"Arthur Clune" <[email hidden]> wrote in message
news:[email hidden]...
Quoted message said:Clive George <[email hidden]> wrote:
: I wrote:
:> Probably fine. It may be hotter later in the year, but you are much
:> more likely to get burnt now.
: what's that to do with then?
Lack of tan + this
"The peak daily ultraviolet radiation level changes over the year. The
strongest being at the Summer solstice (21st June) and the weakest at the
Winter solstice (21st December)."
Quoted message said:(http://www.weatheronline.co.uk/feature/wf270603.htm)
So in August, although it's hot, you are less likely to get burned, even
ignoring
Quoted message said:the tan you may or may not have my then. The converse is that UV strength
is high
Quoted message said:in May even without high temps. Hence my sunburn.
Yes, the Sun is higher in the sky up until 21 JUN. Imagine a torch; hold it
so it is facing down on a bit of card. The beam will be a perfect circle -
now hold it at an angle and the same beam is now spread out in a large
ellipse. The same energy that was concentrated into a small circle when
overhead is now spread out over a larger area and the same thing happens
with the sun. The higher it is in the sky, the more energy per unit area is
hitting your skin.
Actually the summer solstice this year is 20 JUN 04.
--
Simon Mason
Anlaby
East Yorkshire.
53°44'N 0°26'W™
http://www.simonmason.karoo.net