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Was The Speed and Weight of the Airplanes a Factor in the World Trade Center Collapse in 9/11?

On September 11, 2001, two airplanes hijacked by Islamic extremists crashed into the World Trade Center in New York. It’s been over two decades, and authorities are still discovering more about the attack. The Twin Towers were actually built to withstand cruising speed, but what made these airplanes different? The airplanes that hit the Twin …

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Light bulbs in the New York City subway system screw in “backwards” (i.e. with left-handed threads) so people won’t steal them to use at home.

Edison screw Three-way E26d light socket E26 Edison screw to NEMA 1-15 adapter Specifications for all lamp mount types are defined in the following American National Standards Institute (ANSI) and International Electrotechnical Commission (IEC) publications: Lamp Caps—ANSI C81.61 and IEC 60061-1 Lamp Holders—NSI C81.62 and IEC 60061-2 Gauges (to ensure interchangeability)—ANSI C81.63 and IEC 60061-3 …

Light bulbs in the New York City subway system screw in “backwards” (i.e. with left-handed threads) so people won’t steal them to use at home. Read More »

The likely record for fastest manmade object is a manhole cover launched by a nuclear bomb. A high-speed camera recording the lid only caught one frame of it moving meaning it was traveling over 125,000 miles per hour

The fastest object ever launched was a manhole cover — here’s the story from the guy who shot it into space Two angles facing left, which often indicate, “return to the beginning.” Two angles facing right, which often indicate, “advance to the end.” When I first heard this story, I didn’t believe it. How could …

The likely record for fastest manmade object is a manhole cover launched by a nuclear bomb. A high-speed camera recording the lid only caught one frame of it moving meaning it was traveling over 125,000 miles per hour Read More »

A teenager, Peter Roberts invented a quick-release ratchet. He sold his patent to Sears for $10,000 who said that the invention was not worth very much and then went on to make $44 million selling the ratchet. He sued them for fraud and was awarded $1 million.

Socket set with ratchet A socket wrench is a type of wrench or spanner that has a socket attached at one end, usually used to turn a fastener. The most prevalent form is the ratcheting socket wrench, often informally called a ratchet. A ratcheting socket wrench is the device within a hand tool in which …

A teenager, Peter Roberts invented a quick-release ratchet. He sold his patent to Sears for $10,000 who said that the invention was not worth very much and then went on to make $44 million selling the ratchet. He sued them for fraud and was awarded $1 million. Read More »

In 1784 Great Britain imposed a tax on bricks to pay for the war in America. In response, people starting using larger bricks, and buildings can be dated based on the brick size

Bricks were initially taxed at 2s 6d per thousand.[1] To mitigate the effects of the tax, manufacturers began to increase the size of their bricks. Hearth tax Source: https://en.wikipedia.org/wiki/Brick_tax?rp Brick tax Wilkes’ Gobs oversize bricks in the wall of former Ashby Canal warehouse alongside modern bricks of bridge parapet, High Street, Measham. The brick tax …

In 1784 Great Britain imposed a tax on bricks to pay for the war in America. In response, people starting using larger bricks, and buildings can be dated based on the brick size Read More »