Exactly 2 years, more than 50 posts and more than 10k followers later - a very special guest post by a good friend and an amazing chemist Lydia Kisley @Lydia_Kisley @manyweirddays !!! Thirsty? Some anise-flavored aperitifs (pastis, ouzu, absinthe) go from transparent to opaque with the addition of water. These drinks contain an essential oil. In the liquor alone these oily molecules are perfectly happy. But pour in some water and the molecules join others to form an emulsion– small droplets of oily molecules that separate from the water. The oily particles are microscopic and scatter light, making your drink cloudy. A delicious example of phase-separation - cheers! #Physics #InstaPhysics #ColloidsRCool #RealTimeChem #SciComm #OilAndWater #Scattering #Optics #Ricard #Pastis #SouthOfFrance #todayilearned #chemistry #mindblown #europe (hier: Grenoble, France) https://www.instagram.com/p/Bn9HasdARdM/?utm_source=ig_tumblr_share&igshid=1lt2wsc89r8bh