ones ancient ones modern
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poo they look like tornadoes but they are used in submarines I can only give you info on ww2 and after I was on 5 submarines they had a lot of different types of torpedo's their were long ones 20' and alot of shorter ones type in torpedos in the web search and you'll find all you should need
Modern supply chain are different from the traditional channels in that there is more collaboration among the modern ones.
Many early telegraph cables were made of iron wire, but all modern ones are copper.
No. Pakistan has only a few. A couple of them are nuclear, the rest are the conventional ones.
Most modern submarines have one screw (which is the proper term for a propeller). Some of the really big ones have a pair of them, like the Russian submarine Kursk, for example. But the bulk of the designs incorporate a single screw.
Modern submarines, particularly military ones, can typically dive to depths of around 800 to 1,200 feet (240 to 370 meters). However, some advanced submarines, like the US Navy's Seawolf class, are designed to go even deeper, potentially exceeding 1,600 feet (500 meters). Research submarines, such as the DSV Limiting Factor, have reached depths of over 36,000 feet (about 11,000 meters) in the Mariana Trench, showcasing the extreme capabilities of specialized deep-diving vehicles.
Yes, the early ones did not but the later ones did.
the modern-day rods are lighter stronger and less susceptible to breaking than the Chinese ones
The biggest improvement in the new cribs from the old ones is the safety. Over the years, the safety of the cribs have greatly increased.
There are thousands of different glues, and possibly many of the early ones (including super glue) were invented by accident.