Science Fiction
Dictionary
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
 |
CAV-X Supercavitating Ammo Deadly Underwater
Ordinary guns don't fire underwater worth a darn. Bullets quickly slow to a stop in water, a medium 8 times more dense than air.
The tungsten-tipped CAV-X bullet from Virginia’s DSG Technologies has a nose that creates a small air bubble as it moves through the water. The bubble greatly reduces drag on the bullet, a supercavitation effect that has been part of torpedo design since World War II and is now a feature on some types of boats.DSG is also selling to other governments, Leonhardsen said. He declined to identify them. He did say those governments were testing how well the bullets performed when fired from helicopters into the water. One potential target: submarines. In tests performed by DSG, the .50-cal. bullets can travel 60 meters through water or penetrate 2 cm of steel through 17 meters of water.
(Via DefenseOne.)
Fans of 19th century science fiction French phenom Jules Verne also came up with a way of usefully firing a gun under water in his 1875 classic 20,000 Under The Sea:
"Besides M. Aronnax, you must see yourself that, during our submarine hunt, we can spend but little air and but few balls.""But it seems to me that in this twilight, and in the midst of this fluid, which is very dense compared with the atmosphere, shots could not go far, nor easily prove mortal."
"Sir, on the contrary, with this gun every blow is mortal; and, however lightly the animal is touched, it falls as if struck by a thunderbolt."
"Why?"
"Because the balls sent by this gun are not ordinary balls, but little cases of glass. These glass cases are covered with a case of steel, and weighted with a pellet of lead; they are real Leyden bottles, into which the electricity is forced to a very high tension. With the slightest shock they are discharged, and the animal, however strong it may be, falls dead.
(Read more about Jules Verne's Leyden ball)
Thanks to Winchell Chung for pointing this item out.
Scroll down for more stories in the same category. (Story submitted 11/25/2019)
Follow this kind of news @Technovelgy.| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |
Would
you like to contribute a story tip?
It's easy:
Get the URL of the story, and the related sf author, and add
it here.
Comment/Join discussion ( 0 )
Related News Stories - (" Weapon ")
Drone Bombings In Moscow Foreseen 100 Years Ago
'Once the target is confirmed, it uses an IR laser to send a coded signal back to the parent, clearing it to attack.' - Daniel Suarez, 2012.
TM-62 Loitering Ground Landmine
Runaway movie comes to life!
LANIUS Loitering Drone Munition Scouts And Maps
'... micro-missiles proceeding at walking pace.' - Philip E. High, 1968.
Israel Deploys Sharp Shooter AI-powered Robot Guns
'They lock onto the target... and do the actual shooting once the target is identified.' - Michael Crichton, 1980.
Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.
Science Fiction
Timeline
1600-1899
1900-1939
1940's 1950's
1960's 1970's
1980's 1990's
2000's 2010's
Current News
Wearable Energy Harvester
'... he had tightened the chest to gain maximum pumping action from the motion of breathing.'
Drones Participate In Buddhist Rites
'...a prayer wheel swung into view and began spinning at a furious pace.'
Anna Indiana AI Singer-Songwriter
'She is a personality-construct, a congeries of software agents'
Video Manicuring ala Schismatrix
'The program raced up the screen one scan line at a time'
'Feel the AGI' OpenAI Leader Now OpenWorship
'And are all the people willing to be governed by a machine?'
NASA Tests Prototype Europa Lander
Why have legs if they don't walk around?
Tailsitter Drone Aircraft For SAR
'...it was so easy for me to remain motionless in midair.'
Forward CarePod The AI Doctor's Office
'It's an old model,' Rawlins said. 'I'm not sure what to do.'
Mika The Robot-Boss
'the robot-boss was busy at the lip of the new lode instructing and egging the men on to greater speed...'
Yamaha Motoroid 2 No Handlebars Self-Balancing Motorcycle
'He rode the bike with an intense lack of physical grace...'
San Francisco Autobus
'THE autobus turned silently down the wide street...'
Should Your Car Decide If You Can Drive?
'Okay. Maybe the car was right...'
Lucid Dreams On Demand From Prophetic and Card79
'the peeper did not operate by virtue of its machinery alone, but by the reaction of the brain and the body of its user...'
Honda UNI-ONE Hands-Free Wheelchair Follows 100 Year-Old Design
'Noiselessly, on rubber-tired wheels, they journeyed...'
EBS-260 Handjet Free Hand Dot Matrix Printer
'McKie held a chalf-memory stick over the dusted surface.'
Sensitive, Soft Robot Skin
'...tinted material that had all the feel and appearance of human flesh and epidermis.'
