How do you make a burnt coin silver again? 🪙 In this science experiment @Alex Dainis 🧬🔬 demonstrates why soot from a flame is hydrophobic! Soot is mostly made up of small carbon and hydrocarbon particles that repel water making it hydrophobic. When you place the soot covered coin under water a small layer of air forms around it. This creates an air/water interface which causes the light to refract, making the coin look clean! Once you take the coin back out, the sooty appearance will return.

🌫️🔍 Turbocharger Inspection – No Excessive Soot Found! 🔍🌫️

Your turbo diesel lives on oil pressure and soot control.

Photos to show the maximum mercenary and loyalty #national_team #Qandli_group #players #mercenary...

Los Angeles is cooking for Sergeant Qandali #Sergeant_Qandali #Welcome #Los Angeles