Russell Hayward pours a measure of preheated water into a small, bulb-shaped boiling flask and carefully sets it over a halogen heating element. At the flick of a switch, the element glows amber, dimly illuminating the glass from below like a watery Edison bulb. As the water approaches a boil, Hayward outfits another glass contraption with a spring-loaded paper filter and positions the assembly over... More >>>