How cold is the coldest place in the Universe, that we know of? What's the lowest man-made temperature ever achieved? And just how many zeroes are needed to express 'absolute hot', after which the fundamentals of conventional physics start to break.
This glow in the dark glue costs under two dollars to make and there are so many fun ways to use it! A squirt of glow paint from Michaels in clear glue. Make designs on wax paper to make glow window clings
Use glow sticks taped to the house for a neon message! Or love note idea Or. MISSIONARY HOMECOMING IDEA :))) This would be cool for Alex walking in the door at midnight niext stint he's home for valentines day!