Search results
Results from the WOW.Com Content Network
In structural engineering, Johnson's parabolic formula is an empirically based equation for calculating the critical buckling stress of a column. The formula is based on experimental results by J. B. Johnson from around 1900 as an alternative to Euler's critical load formula under low slenderness ratio (the ratio of radius of gyration to ...
A delay-action bomb is an aerial bomb designed to explode some time after impact, with the bomb's fuzes set to delay the explosion for times ranging from very brief to several weeks. Short delays are used to allow the bomb to penetrate before exploding: "a delay action bomb striking the roof of a tall building will penetrate through several ...
Operations Order No. 35 was an order issued by the 509th Composite Group on August 5, 1945 for the atomic bombing mission on Hiroshima, Japan, during World War II.The Order was signed by Operations Officer Major James I. Hopkins, Jr. who would later fly Big Stink in the August 9, 1945 atomic bombing raid on Nagasaki, Japan, under the call sign "Dimples 90".
An antimatter weapon is a theoretically possible device using antimatter as a power source, a propellant, or an explosive for a weapon.Antimatter weapons are currently too costly and unreliable to be viable in warfare, as producing antimatter is enormously expensive (estimated at US$6 billion for every 100 nanograms), the quantities of antimatter generated are very small, and current ...
“Over-the-shoulder” delivery. Toss bombing (sometimes known as loft bombing, and by the U.S. Air Force as the Low Altitude Bombing System, or LABS) is a method of bombing where the attacking aircraft pulls upward when releasing its bomb load, giving the bomb additional time of flight by starting its ballistic path with an upward vector.
A pencil detonator or time pencil is a time fuze designed to be connected to a detonator or short length of safety fuse. They are about the same size and shape as a pencil , hence the name. They were introduced during World War II and developed at Aston House , Hertfordshire , UK .
Zach Johnson's f-bomb It's been a rough few months for Zach Johnson, the 2007 Masters champion. He lost the Ryder Cup he captained, he lost face in the Netflix "Full Swing" documentary on last ...
A time bomb's timing mechanism may be professionally manufactured either separately or as part of the device, or it may be improvised from an ordinary household timer such as a wind-up alarm clock, wrist watch, digital kitchen timer, or notebook computer. The timer can be programmed to count up or count down (usually the latter; as the bomb ...