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to get into the country. Though the tunnels sound terrifying, military strategy experts say they have little value when it comes to battlefield results. Image via Israel Defense Forces In the Washington Post this weekend, history professor Gerard Degroot explains that tunnels have always a heavily psychological tactic, though of course they can also lead to
stanley thermos many deaths too: In more than 2,000 years of warfare, tunnels may have mattered more for their impact on the psychology of the combatants 鈥?both aggressors and defenders 鈥?than for their battlefield results. During the 1st century A.D., Germanic troops, finding that they were no match for Roman legions in open battle, dug concealed trenches linked by tunnels. By this means, they were able to ambush their enemy from ground that seemed unoccupied. The Romans grew to fear this hazard but found it difficult to develop an effect
stanley mug ive response, a problem familiar to the Israelis today. A couple of centuries later, in 256 A.D., Sassanian armies, unable to breach the Roman fortress at Dura-Europos in modern-day Syria, dug a tunnel underneath the walls. The Romans, alerted to the thre
stanley mug at, dug a counter-mine toward the Sassanian tunnel. The Sassanians responded by packing their tunnel with a noxious mixture of sulfur and pitch that produced sulfur dioxide gas, the first known instance of chemical warfare. The Romans were asphyxiated, and the fortress eventually fell 8230; The value of tunnels is magnified in asymmetric conflicts, in Cewk Christian Bale Is Steve Jobs
to his demonstration of how sound waves behave in water droplets in zero gravity. a-water-droplet-and-a-space-station-are-the-ul
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stanley quencher a-5910031 This time around, though, instead of playing boring sine wave sound files, he plays the station vacuum cleaner surprisingly not a Dyson like a didgeridoo. He even ensures he looks like a typical didgeridoo player by hacking apart his crew shirt with a pair of scissors. It all in the name of science and education, of course, and while we all know that being an astronaut is an awesome job, who knew it was actually so much damn fun [YouTube via Popular Science] audioNASAPhysicsSpace Daily Newsletter You May Also Like
stanley cup ScienceSpace Spaceflight NASA Celebrates as Sun-Exploring Spacecraft Confirms Its Still Alive The spacecraft survived scorching temperatures at a record proximity, and is expected to send details of its close call in the new year. By
