As early as 1990, he led the opposition within the IDF to the establishment of a modern submarine fleet that would constitute Israel’s long-distance strategic arm – including, reportedly, a nuclear second-strike capability, proposing instead to purchase and refurbish old submarines.Footnote51 ...
The Segway has an additional weight sensor built into its platform to tell the computer when a rider has stepped on. Brakes: The Segway doesn't have a braking system. To stop, the rider stands upright without leaning forward or backward, and the vehicle maintains its position. Turning radius...
Whether designing flying machines or imagining submarines, Leonardo’s mind constantly pushed him to explore the impossible. The good news is that curiosità isn’t just for Renaissance geniuses – it’s a skill you can develop in your own life. A practical starting point is to do what da ...
The U.S. Navy revoked its ban on women serving in submarines. The last U.S. troops began leaving Iraq, and Obama announced that combat operations in Iraq would be discontinued. [Pictured: President Barack Obama signs the Don't Ask, Don't Tell Repeal Act of 2010] 2011: Osama bin Laden...
Most of us are too young to remember the attack, so we rely on people like Darrel to tell the story. He was there. Seventeen years old. When he looked at me as he told the story, you could tell by the look in his eye and the sound in his voice, it was as if he could ...
Can you briefly explain, if you can, the engineering behind how submarines are able to navigate such crushing depths in the first place—and why Titan was presumably unable to? The key is the design of the hull that protects the vessel against the large external water pressure tha...
The bat can tell if an insect is to the right or left by comparing when the sound reaches its right ear to when the sound reaches its left ear: If the sound of the echo reaches the right ear before it reaches the left ear, the insect is obviously to the right. The bat's ears ...
The bat can tell if an insect is to the right or left by comparing when the sound reaches its right ear to when the sound reaches its left ear: If the sound of the echo reaches the right ear before it reaches the left ear, the insect is obviously to the right. The bat's ears ...
That's why whales use sound to communicate over such long distances and why submarines use SONAR (sound navigation and ranging; a sound-based navigation system similar to radar only using sound waves instead of radio waves). It's also one of the reasons why it's very hard to figure out ...
The interesting thing to reflect on is that David achieved this using the same technology as all other similar class submarines, he did not get some special funding to do this so the only area he worked on, and relentlessly so, was on social process. Essentially the story is one about ...