What is the origin of the Jolly Roger?

What is the origin of the Jolly Roger? The title Jolly Roger is thought to come from the French phrase “joli rouge” which means “pretty red”. The original pirate flags were blood red rather than black and white and this signalled that no mercy would be given once the pirates boarded and battle ensued. What […]

How did the muckrakers get their name?

How did the muckrakers get their name? The term “muckraker” was coined by the progressive president Theodore Roosevelt in his 1906 speech “The Man With the Muck Rake.” It referred to a passage in John Bunyan’s “Pilgrim’s Progress” which describes a man who raked muck (soil, dirt, manure, and vegetal matter) for a living rather […]

Is a helicopter kinetic energy?

Is a helicopter kinetic energy? Helicopters store large amounts of rotational kinetic energy in their blades. This energy must be put into the blades before takeoff and maintained until the end of the flight. The engines do not have enough power to simultaneously provide lift and put significant rotational energy into the blades. What energy […]

Why is a Jacuzzi bad for you?

Why is a Jacuzzi bad for you? When hot tubs aren’t cleaned well, their moist environment is the perfect breeding ground for bacteria. Pseudomonas, one type of bacteria that thrives in hot tubs, causes infections of the hair follicles and skin. Symptoms include red, itchy bumps on the belly and areas covered by your bathing […]

What color is speaker wire?

What color is speaker wire? The color code for four-conductor wire is speaker one: Red (positive), Black (negative) speaker two: White (positive), Green (negative). Its purpose is to carry an electrical signal (voltage and current) from the amplifier (or the amplifier section of a receiver) to the speakers. Is it OK to extend speaker wire? […]

What health problems cause the most disability?

What health problems cause the most disability? Arthritis—or join inflammation—is the most common cause of disability among adults residing in the United States. It limits everyday activities for 24 million Americans. People with disabilities can be at greater risk of having arthritis. What are some disabilities that qualify you for disability? Guide to the List […]

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