6scienceThe first vaccine, developed by the English physician Edward Jenner in 1796, protected people against what disease?Show AnswerLearn MoreShare
10scienceThe hypodermic syringe, a lifesaving devise used by doctors but abused by junkies, was invented at the time of which war?Show AnswerLearn MoreShare
9scienceIn 1943, French underwater explorer Jacques Cousteau helped create an invention designed for underwater breathing, and 60's British rock group Jethro Tull named an album after it. What is it?Show AnswerLearn MoreShare
17scienceIf the astronauts took with them the moon a grandfather clock, for what scientific reason would it not keep proper earth time?Show AnswerLearn MoreShare
12scienceWhat word can refer to a soft, creamy European cheese, or to the fundamental units of matter, smaller than an electrons (as surmised by scientists).Show AnswerLearn MoreShare
13scienceWhat is the name of the effect, named after a 19th Century Austrian physicist, which causes the sound of a moving object to change its pitch as it approaches and then passes you?Show AnswerLearn MoreShare
19scienceWhich small, prehistoric flying animal got its name from the Greek words meaning flying finger wing?Show AnswerLearn MoreShare
1scienceIn physics, what unit of measure is defined as the ratio of the mass of a substance to its volume, expressed in grams per cubic centimeter or pounds per cubic foot?Show AnswerLearn MoreShare
2scienceWhat was the name of the controversial herbicide used by the United States during the Vietnam War to defoliate jungles?Show AnswerLearn MoreShare
12scienceAmerica's first nickel, or five cent piece, was first produced in 1866. It consisted of 25% nickel, and 75% what metal?Show AnswerLearn MoreShare
20scienceIn April and May, 1961, the first two astronauts were launched into space; one Russian and one American. Can you name them?Show AnswerLearn MoreShare
17scienceA deficiency of Vitamin C can cause a disorder characterized by bleeding gums and extreme weakness, called what?Show AnswerLearn MoreShare
16scienceThe first Nobel Prize for physics was awarded in 1901 to the German physicist who discovered a short-wave ray called the x-ray. In Europe, they refer to x-rays by his name. Who was he?Show AnswerLearn MoreShare
10scienceThis chemical element makes up about 1/4 of the earth's crust; it is the main ingredient of sand, is the main ingredient of glass, is used in the making of computers, and can also be made into synthetic rubber. What is this element?Show AnswerLearn MoreShare