I need sunshine on a cloudy day....

otherwise Second son is gonna be in it deep tomorrow.  His science experiments (of which I knew nothing, and you can tell the parent-of -the-year commitee that I don't care either, so there) are due tomorrow, and one of them requires placeing a jar of water in a sunny spot.  of which there are none because it's overcast and has been for two days.  If he'd done the work last week when he was supposed to, rabbit, mumble,etc.  So I am about to resort to placing said jar under my ultrabright magnifying headlice detecting lamp and hoping for the best.  I bet Einstein's mother never had to do this.