1938: Drunkometer Indiana University chemistry professor Rolla Harger’s Drunkometer was a predecessor of today’s breathalyzer. Ironically, this second version was created by another Indiana University professor. The earlier Drunkometer model used a rubber balloon and purple liquid to measure a person...
1938: Drunkometer Indiana University chemistry professor Rolla Harger’s Drunkometer was a predecessor of today’s breathalyzer. Ironically, this second version was created by another Indiana University professor. The earlier Drunkometer model used a rubber balloon and purple liquid to measure a person...
C. By pouring some chemical liquid. D. By decorating some reflective objects. 35. Who is the passage written for A. Individuals looking to improve their indoor gardening skills. B. Farmers planning to grow crops in low-light conditions. ...
Instead, they live on a sweet liquid from corn, usually polluted with pesticides.The exact reason for the disappearance of bees is not sure, but losing bees is very costly to the economy. The bee pollination services are worth over $8 billion a year. With no bees, pollination will have ...
Light brown liquid flowed out, creating ugly mess on the floor. Danny caught a flash of a boy in a green T-shirt running off into the distance. ”How rude!“ Danny shouted, gritting his teeth. “Not even an apology!”Just then, Mr Halim, the camp guide, approached Danny. ”What ...
D.It combines the liquid with layers of skin.31.What is the prospect of mycelium-based materials A.A flash in the pan. B.Promising but challenging.C.Inspiring but unachievable. D.A growth and decline cycle.DThere’s a useful concept from psychology that helps explain why good people do ...
The Earth’s core has two parts:the outer core and the inner core.Both of these are made mainly of the metals—iron and nickel.The outer core is liquid. But the inner core is a solid ball held in this liquid almost like the yolk(蛋黄) in an egg.Scientists suspected for a long ...
The Earth’s core has two parts:the outer core and the inner core.Both of these are made mainly of the metals—iron and nickel.The outer core is liquid.But the inner core is a solid ball held in this liquid almost like the yolk(蛋黄) in an egg.Scientists suspected for a long time...