CompBullets are claimed to go faster than regular bullets, due to vents that have been mac...

Competition shooters like their bullets to fly as fast (and thus straight) as possible, and they try to keep recoil to a minimum. Italian ammunition-maker CompBullet produces a series of bullets of the same name, which are claimed to both go faster than normal ammo, and produce less recoil. The secret? The bullets have go-faster holes in them.

Available in several calibers, the copper alloy bullets have a main cavity in the base, with multiple “vents” machined into their sides. These reportedly serve several purposes.

First of all, when the gun is fired, the vents supposedly allow the propellant gases to go through the sides of the bullet, providing lubrication between it and the inside of the gun’s barrel.

CompBullets are claimed to go faster than regular bullets, due to vents that have been mac...

As the bullet exits the gun, the gases symmetrically shoot sideways out of the vents. This – so we’re told – creates a “muzzle brake” effect. A muzzle brake is a device fitted to the end of a gun’s barrel, that redirects the gases as they leave the gun, to offset the recoil effect. The vents in the CompBullets apparently serve the same purpose.

At the same time, the gases shooting out of the vents are also said to create a rocket-like effect, increasing the bullet’s velocity. All of you physicists are welcome to weigh in on this one, but it’s hard to say if gases exiting the sides of a bullet would really cause it to travel any faster than gases that were limited to pushing on it from behind.

Additionally, CompBullets are claimed to produce less muzzle flash and less smoke. If nothing else, all those holes probably make them lighter than regular bullets, to boot.

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Henry Sapiecha

We all know about these commonly used inventions, but they had a dark side.

1…..Ecstasy


Anton Köllisch developed 3,4-methylenedioxymethamphetamine as a by-product of research for a drug combating abnormal bleeding. It was largely ignored for around 70 years until it became popular in  dance clubs of the early 80s. It was only when the Rave party culture of the late 80s adopted Ecstasy as its drug of choice that MDMA became one of the top four illegal drugs in use killing an estimated 50 people a year in the UK alone. Its inventor died in World War I.

2…Concentration camps

Frederick Roberts, 1st Earl Roberts set up “safe refugee camps” to provide refuge for civilian families who had been forced to abandon their homes for one  reason or another related to the Boer War. However, when Lord Kitchener succeeded Roberts as commander-in-chief in South Africa in 1900, the British Army introduced new tactics in an attempt to break the guerrilla campaign and the influx of civilians grew dramatically as a result. Kitchener initiated plans to- “flush out guerrillas in a series of systematic drives, organized like a sporting shoot, with success defined in a weekly ‘bag’ of killed, captured and wounded, and to sweep the country bare of everything that could give sustenance to the guerrillas, including women and children.” Of the 28,000 Boer men captured as prisoners of war, 25,630 were sent overseas. The vast majority of Boers remaining in the local camps were women and children. Over 26,000 women and children were to perish in these concentration camps.

3…ROCKETS


Despite a lifelong passion for astronomy and a dream that rockets could be used to explore space, Wernher von Braun’s talents were used to produce the Nazi V2 rocket which killed 7,250 military personnel and civilians and an estimated 20,000 slave laborers during construction. Later in the US he developed a series of ICBM rockets capable of transporting multiple nuclear warheads around the globe before redeeming his reputation with the Saturn V rocket that put men on the moon

4…NUCLEAR FUSION

Sir Marcus Laurence Elwin Oliphant was the first to discover that heavy hydrogen nuclei could be made to react with each other . This fusion reaction is the basis of a hydrogen bomb. Ten years later, American scientist Edward Teller would press to use Oliphant’s discovery in order to build the hydrogen bomb. However, Oliphant did not foresee this – “We had no idea whatever that this fusion reaction would one day be applied to make hydrogen bombs. Our curiosity was just curiosity about the structure of the nucleus of the atom”.

5…SARIN GAS

Dr. Gerhard Schrader was a German chemist specializing in the discovery of new insecticides, hoping to make progress in the fight against world hunger. However, Dr. Schrader is best known for his accidental discovery of nerve agents such as sarin and tabun, and for this he is sometimes called the “father of the nerve agents”.

6…LEADED PETROL


Thomas Midgley discovered the CFC Freon as a safe refrigerant to replace the highly toxic refrigerants such as ammonia in common use. This resulted in extensive damage to the Ozone Layer. His other famous idea was to add tetraethyl lead to gasoline to prevent “knocking” thus causing worldwide health issues and deaths from lead poisoning. He is considered to be the man that – “had more impact on the atmosphere than any other single organism in Earth’s history.”

7…TNT

Joseph Wilbrand was a German chemist who discovered trinitrotoluene in 1863 to be used as a yellow dye. It wasn’t until after 1902 that the devastating power of TNT as it is better known was fully realized and it was utilized as an explosive in time for extensive use by both sides in World War I, World War II. It is still in military & industrial use today.

8…GATLING GUNAdd an Image


Richard Jordan Gatling invented the Gatling gun after he noticed the majority of dead from the American Civil War died from infection & illness, rather than gunshots. In 1877, he wrote: “It occurred to me that if I could invent a machine – a gun – which could by its rapidity of fire, enable one man to do as much battle duty as a hundred, that it would, to a large extent supersede the necessity of large armies, and consequently, exposure to battle and disease would be greatly diminished.” The Gatling gun was used most successfully to expand European colonial empires by ruthlessly mowing down native tribesmen armed with basic primitive weapons.

9…AGENT ORANGE

Arthur Galston developed a chemical that was meant to speed the growth of soybeans and allow them to be grown in areas with a short season. Unfortunately in high concentrations it would defoliate them and it was made into a herbicide even though Galston had grave concerns about its effects on humans. It was supplied to the US government in orange striped barrels and 77 million litres of Agent Orange were sprayed on Vietnam causing 400000 deaths and disabilities with another 500000 birth defects. Service personnel to some extent were also affected

10…ZYKLON B

Fritz Haber was a Nobel Prize winning Jewish scientist who created cheap nitrogen fertilizer and also made chemical weapons for the German side in World War I. It was his creation of an insecticide mainly used as a fumigant in grain stores that was responsible for the deaths of an estimated 1.2 million people. His Zyklon B became the nazis preferred method of execution in gas chambers during the Holocaust.

Sourced & published by Henry Sapiecha


Sweating stealth vehicle among BAE Systems future battlefield concepts

BAE Systems has presented the fruits of its Future Protected Vehicle program (FPV) to the U.K. Ministry of Defence, and it’s an intiguing glimpse of the what we can expect to see in tomorrow’s high-tech battlefield. With input from over 35 organizations, the FPV study is aimed at identifying “innovative technologies and concepts for short, medium and long term exploitation into future lightweight land platforms.” Hundreds of new technologies were canvassed in the study and seven platform concept vehicles have been floated to showcase the most significant of these, including the use of electronic ink camouflage systems, microwave weapons, floating electro-magnetic armor and a type of mechanical “sweat” that reduces thermal signature. Read More

Sourced & published by Henry Sapiecha


Detecting Deadly Chemicals

Computer Scientists Develop

Portable Evidence-Gathering Tool

December 1, 2006 — Investigators on a crime scene can now use a new tool for collecting chemical or biological samples. The sampler gun collects samples on a cotton pad — eliminating direct contact with anything harmful, as well as risk of contaminating evidence — a GPS system to record the samples’ location, a camera that snaps pictures for evidence, and a digital voice recorder and writing pad for taking notes.


Whether it’s a murder, a break-in, or an anthrax scare, investigators trying to solve a crime are burdened with collecting delicate, sometimes toxic evidence.

Mention white powder and mail, and who can forget the deadly anthrax scare that swept America? Jennifer Greenamoyer remembers it well. “This is the building where they sort the mail, and this building was contaminated and was the first building to be closed,” she says.

Greenamoyer was a congressional staffer during anthrax scare. “Even though I didn’t necessarily feel like I was exposed or I was kind-of at risk — you knew that other people in the building had been.”

She was safe, but there’s still danger to investigators going back inside to collect samples for analysis. A new device, called the Hands-Off Sampler Gun, eliminates the risk of collecting toxic materials.

“You don’t get exposed yourself to the potential agent, anthrax, and you’re also not contaminating the sample media,” computer scientist Torsten Staab, of the Los Alamos National Laboratory in New Mexico, tells DBIS.

Traditional ways of gathering harmful chemicals use many gadgets. This device puts several technologies into one, easy-to-use gun.

Developed by computer scientists, the Hands-Off Sampler Gun has a cotton pad that grabs chemicals to eliminate direct contact with anything harmful. A GPS system tracks the location of a chemical and the investigator. It also includes a camera that snaps pictures for evidence and a voice recorder and writing pad to take digital notes. The all-in-one device is important to identify a chemical and its risk factor and make sure everything is safe for everyone.

The Sampler Gun could also be made useful for collecting evidence, like bloodstains at crimes scenes. “We have all the information at the end, electronically. It could be wirelessly transmitted from the field to the laboratory,” Staab says.

The FBI plans on field testing the device with its Hazardous Response Unit early next year.

BACKGROUND: Researchers at Los Alamos National Laboratory are developing a Hands-Off Sampler Gun that would automate the otherwise expensive and time-consuming process of maintaining a proper chain of custody for forensic evidence collected at crime scenes. This will help keep evidence from being mishandled and ensure more credible evidence for jurors. The gun is being marketed initially for forensic biology applications, but could also prove valuable to counter-terrorism efforts.

HOW IT WORKS: When a crime scene investigator locates evidence such as a blood stain, the Hands-Off Sampler Gun collects the sample with its universal sample-media adaptor. Thee investigator never has to touch the sample directly, and thereby avoids the potential for contaminating that sample. Once the sample has been collected, the investigator can testify in court that it was collected properly.

PROVING IT: The investigator will have proof to back up his or her testimony, because an onboard, 3D accelerometer — a type of sensor that detects force — records the sampling pattern, which proves that the sample was blotted, wiped or scraped properly. The gun’s force detector measures and records the pressure the investigator applies and compares it to the force necessary for proper collection of, for example, certain biological (DNA) samples. The gun also automatically records the sample’s location with internal Global Positioning System (GPS), measures the ambient temperature and takes a digital picture of the sample being collected. And here is an incorporated barcode reader and audio recorder to further establish proper chain of custody. All this information can be easily downloaded to a desktop computer through standard interfaces.

WHAT ARE MEMS: Accelerometers are an example of microelectro-mechanical systems (MEMS), devices that integrate electronic and moving parts onto a microscopic silicon chip. This integration makes such devices ideal for sensor technology. The term MEMS was coined in the 1980s. A MEMS device is usually only a few micrometers wide; for comparison, a human hair is 50 micrometers wide. Among other everyday applications, MEMS-based sensors are used in cars to detect the sudden motion of a collision and trigger release of the airbag. They are also found in ink-jet printers, blood pressure monitors, and projection display systems.

For more information, please contact:

Juli Gandasatria, Sr. Technology Program Manager
Office of Technology Transfer and Commercialization
E-mail: jgandasa@csusb.edu
Phone: 909-537-7758 / Fax: 909-537-7450

Sourced and published by Henry Sapiecha 8th April 2010

Engineers Develop Technique for

Recognizing Gun Owner’s Grip

May 1, 2005 — Researchers have designed, built and tested a handgun that will fire only when its component circuitry and software recognize the grip of an authorized shooter. The technology measures not only the size, strength and structure of a person’s hand, but also the reflexive way in which the person acts. For the smart gun, the observed actions are how the person squeezes something to produce a unique and measurable pattern. Embedded sensors in the experimental gun then can read and record the size and force of the user’s hand during the first second when the trigger is squeezed.


NEWARK, N.J.–Many Americans keep a gun in the house for safety, but the National Safety Council reports nine children are killed every day from gun violence. Now, a new smart gun technology may help keep guns from going off in the wrong hands. Nancy Vazquez does what she can to keep her kids safe from guns in her home, but she still feels uneasy. “I do have concerns even though the guns are locked up, and the children don’t have them. There’s always the big what if they get a hold of the key.”

Vazquez has a right to be concerned — guns and kids are a bad mix. But now, engineers have developed a new smart gun. It can’t be fired unless it recognizes the owner’s hand size and grip.

“The idea is to use the science of biometrics, the ability to identify the individual by some unique attribute in this case literally by the way that you squeeze the gun when you pull the trigger,” says engineer Donald Sebastian of New Jersey Institute of Technology in Newark.

Unlike other gun safety mechanisms, the smart gun’s grip recognition makes it impossible for another adult or more importantly — a child — to duplicate the gun owner’s one-of-a-kind hold on a gun.

Sebastian says, “Underneath the different elements of your finger and under your palm there are different amounts of pressure that indicate how hard you are squeezing. Right at the very point-by-point, where you touch the gun, we put sensors.”

The ergonomically designed gun has 16 computerized sensors embedded in the handle. The sensors capture the unique pattern and pressure of your grip, plus the size of your hand. If someone else tries to use the gun, the information will not match the stored pattern of the owner’s — and the gun won’t fire.

“We need smart gun technology, frankly, because we still have too many incidences of unauthorized access to weapons in the home,” Sebastian says.

Experts say smart gun technology might someday help prevent tragedy but can’t replace talking to your kids.

Vazquez says, “My hope is that by educating my children they’ll know to either walk away from the situation or go get an adult.” Which may be the smartest gun lesson of all.

Researchers expect the smart gun grip recognition technology to be available in about three years.

Many people assume that grip strength is primarily determined by the size of a person’s forearm, particularly the wrists. But many other factors inside the hand really make a difference. The size, strength and structure of the hand — including the palm and fingers — all contribute to grip strength, and can vary widely.

Reflexes can also vary. For instance, how someone squeezes something can produce a unique pattern. The pattern can be detected by sensors, which read and record the size and force of a user’s hand during the first second of squeezing.

There are several kinds of grip strength. A firm handshake, for example, is a form of crushing strength, while the ability to exert crushing strength on something and sustain it over time is an example of supporting grip strength. Pinch grip strength is the ability to grasp and lift an object between your thumb and fingers, and relies very heavily on the strength of the thumb.

Scientific studies disagree about what grip strength shows about a person’s health. One study conducted by the Boston University Arthritis Center found that men with a strong grip were more likely to develop arthritis in certain joints of their hands and fingers. Another study conducted by the Honolulu Heart Program found that low grip strength could be an indicator for disability later in life.

Sourced and published by Henry Sapiecha 8th April 2010