Though cockroaches are insects commonly associated with human dwellings, only about 20 of the 3,500 known species are suited to thrive in the typical home. Once a home is infested, however, it is extremely difficult to eradicate the pest. One of the world's hardiest insects, the cockroach can live without food for up to a month and without breathing for up to 45 minutes. Even decapitation does not immediately kill the bugs. Experts believe cockroaches could even survive what cataclysmic event?
Back in the day
Caracas is the capital of Venezuela, located in the northern part of the country near the Caribbean coast. In 1811, Venezuela declared its independence from Spain, signing a declaration to that effect in Caracas on July 5. Less than a year later, the city was destroyed by an earthquake, prompting authorities to portray the disaster as divine punishment for those who rebelled against the Spanish Crown. What does the red color on the flag of Caracas represent?
Born on a day like today
Priestley was an English theologian and scientist. He prepared for the Presbyterian ministry but gradually rejected orthodox Calvinism for Unitarianism. His History of the Corruptions of Christianity, published in 1782, was officially burned in 1785, and he immigrated to the US in 1794. As a scientist, his manipulation of gases enabled him to investigate their properties and discover new gases, including "dephlogisticated air," a gas that was later named what?