When it’s a hot, muggy day, you’ve probably heard the word “humid.” But what does that mean, exactly? Relative humidity is the amount of water that the air can hold before it rains. Humidity is usually measured in percentages, so the highest level of rela
#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
