Usually when solids form, atoms get closer together to form something denser. This is why most solids sink in water. But solid water, or ice, is actually less dense. This is unusual. The water molecules form rings when water freezes. All that space makes
#Repost @andyp.tts ・・・ Stary night sky above the Clifton Observatory a few days ago. #bristol #clifton #somerset #northsomerset #cliftonobservatory #bristolobservatory #visitengland #visitbristol #bristol_lens #bristol247 #livebristol #bristolcity #besto
