Atmospheric westerly jet streams are driven by temperature differences between low and high latitudes the rotation of Earth. Meandering propagating Rossby waves responsible for variable weather in mid-latitudes. Moreover, extreme events such as heat cold spells part stream dynamics. For many years, a simple analog form simplified laboratory experiment, differentially heated rotating annulus, ha...

Polyphenol oxidases (PPO) are enzymes that catalyze the browning of fruits and vegetables when oxygen in air reacts with present phenolic compounds. This study demonstrates enzymatic food samples inhibition its activity by common household materials. Fresh were tested different treatments acidic ionic solutions, syrups. Observations from students’ work showed changes pH, surface area for site r...