WHO INVENTED THE STUPID FILTER?

The filter against stupidity is already available!

Stupid Filter, a program that detects and filters stupid or impertinent remarks on websites, is now available. The creators, who have managed to mount a finance company, on July 29 launched the first version in evidence. Announced months ago, the project got hundreds of volunteers who collaborate to collect feedback from the formal point of view, might be regarded as stupid. In the absence of a semantic analysis technology, Stupid Filter analyzes the shape of the message, its extension, the use of capital or the keyword to decide what is stupid. Volunteer work has allowed Paul Starr and Gabriel Ortiz developing a huge database with which the programme collates each new post before deciding whether or not it is impertinent. Apart from an improved mathematical algorithm that analyzes the messages, the main novelty regarding the initial design of the program is increasing the speed and reliability of the system. As Ortiz said, "the new search engine is much faster." The application allows those responsible for websites to automate the filtering comments. Free software Stupid Filter, created with free software, has become the first company product Rarefied Technologies. The firm, a company backed by venture capital, wants to tap into the mathematical algorithm behind Stupid Filter to design other programs aimed at mathematical field of natural language processing. For now, the program only works in English, but is already collecting stupid comments in other languages, including Spanish, to develop a comprehensive database multilingual.

WHO INVENTED A FORM OF DEFERRED PAYCHECKS USED IN THE STOCK EXCHANGE?

Argentina invents something unique in the world!

The form of financing through the Stock Exchange trading on the paychecks deferred is a creation of Argentina which emerged in the crisis of 2001 and it is unique in the world.

"Globally it does not exist, is something that only operates in Argentina, and we saw at a meeting of the Inter-American Federation of Stock Exchanges in which we participated," said the director of the Argentine Institute of Capital Market (BFMI), Monica Erpen. "Nowhere surges this type of instrument, because it is not a negotiable value, but is authorized to be quoted on the stock exchange," he explained .. It was further considered that it "is a typical element emerged from the crisis of 2001-2002 in Argentina, as the "patacón" but much more successfully."

Checks in deferred payments allow speedy access to capital to entrepreneurs through a discount rate to the value of the check. This system was to be quoted on the stock exchange regulated by the government of former president Néstor Kirchner from 2003, and since then was a "key tool" to help SMEs to finance, especially working capital.

WHO INVENTED THE TERM "BLACK HOLE?"

It was the physicist John Archibald Wheeler (1911-2008), who also coined the term 'wormhole'. This scientist became one of the essential figures, was among the last employees of Albert Einstein in his youth and worked with the young Danish Niel Bohr, that made him one of the pioneers of nuclear fission, also collaborated on Project Maniatan , In building the reactors that produced plutonium to fuel the first atomic bombs.

In 1957, to deepen the general theory of relativity Einstein, created the concept 'wormhole' to refer to the hypothetical tunnels in space-time. The term 'black hole' as coined in 1967 during a conference at the Goddard Institute for Space Studies of NASA at Columbia University, USA

WHO INVENTED THEDIFFERENT TYPES OF EAR PLUGS?

The inventors below made landmark improvements to earplugs, however, it is impossible to determine who invented the very first ear plug. Many ancient peoples created homemade ear plugs from clay, or cotton and wax to reduce noise or protect the ears from the environment i.e. water.

Moldable Pure Silicone Ear Plugs

Ray and Cecilia Benner invented the first moldable pure silicone ear plugs in 1962. The ear plugs were valued by swimmers, as well as those avoiding noise, for their waterproof qualities. McKeon Products marketed the new ear plugs known as Mack's Pillow Soft Earplugs.

Classical musician, Ray Benner bought McKeon Products in 1962. At that time the company's sole product was Mack's Earplugs (named after the original owner). Mack's Earplugs were moldable clay ear plugs. The Benners designed new ear plugs made from silicone, a waterproof material, to help prevent swimmer's ear, an infection of the ear caused by exposure to water.

Mack's Pillow Soft Earplugs are also great noise stoppers.

Foam Ear Plugs

Ross Gardner invented foam ear plugs in 1972. They were first marketed by the Cabot Safety Company as the E-A-R Classic. Gardner got his idea from the soft padding used in headphones. Disposable foam ear plugs found in drugstores can reduce noise levels by 25 decibels. Foam ear plugs are made from either polyvinyl chloride (PVC) or polyurethane.
Rating Ear PlugsEarplugs are rated with an NRR (the acronym for Noise Reduction Rating). An NRR tells you how much noise reduction in decibels a set of ear plugs provides. Most ear plugs offer between a 26 to 33 reduction in decibels.

WHO INVENTED THE HEARING AID?

It is uncertain who invented the first electric hearing aid, it may have been the Akoulathon, invented in 1898 by Miller Reese Hutchinson and made and sold (1901) by the Akouphone Company of Alabama for $400.

A device called the carbon transmitter was needed in both the early telephone and the early electric hearing aid. This transmitter was first commercially available in 1898 and was used to electrically amplify sound. In the 1920's, the carbon transmitter was replaced by the vacuum tube, and later by a transistor. Transistors allowed electric hearing aids to become small and efficient.

In 1888 a gentlemen named Emile Berliner invented the flat disc record. These very first discs were produced of a vulcanised rubber and were between 12.5cm and 18cm in diameter. ater he discovered that a mixture of shellac (a secretion from the lac beetle) and slate dust produced an extremely hard wearing but very brittle surface and from this the 78rpm disc was developed. The slate dust was used because the older acoustic gramophones used steel needles with a pick-up weight of up to 200 grams and the slate helped grind the needle to fit the groove more closely. A modern record pick-up tracks at a recommended maximum of 7 grams. Most record players today can pick up a track at under 1 gram.

Between 1900 and 1960 the discs were usually 25 or 30cm across & gave between 2 and 5 minutes playing time each side. In the beginning sound was recorded with a horn attached to a diaphragm and stylus, which scratched out a trace in a rotating wax disc. This method lasted until 1925, when microphones became sufficiently developed to allow the recording of music.

During the Second World War records were sent from the USA to overseas POW camps to keep up prisoner morale. Due to their brittleness these were frequently broken in transit, so a new compound, vinyl, was born to give greater flexibility and reduce the likelihood of breakages. During the war years vinyl was a very expensive material but the special circumstances of war justified it's use.

By 1948, Columbia Records had developed its 30cm Long Playing record, rotating at 33rpm and giving about 20-30 minutes a side which saw the downfall of shellac and vinyl was used from then on. Long-playing phonograph records may look the same now as when they were introduced in 1948, but countless refinements and developments within the industry have been made to perfect the long-playing record's technical excellence and insure the best in sound reproduction and quality available in recorded form.

A year later the first 45rpm disc was produced by RCA, 18cm in diameter and giving about 3 minutes a side. No better than the 78 for playing time, but ideal for pop record companies and juke box manufacturers! The 45 was light, compact, sounded much better than the 78 and was less prone to getting broken. 1958 saw the arrival of stereo records although unsuccesful experiments with two channel sound had been going on since before the First World War. This pleased those first "collectors" but irritated the retailers who had to keep dual stocks of LPs in mono and stereo and of course, the record companies had to prepare separate mono and stereo mixed versions of the LPs to start with. Stereo was generally only used for LPs up until about 1970, when pop singles began to appear in stereo versions so by this time the mono LP became a thing of the past.

In the late 1950s some companies experimented with a 16rpm speed originally intended for 'talking books' but was also used for music LPs in Eastern Europe and Africa. An American company also produced an 8rpm discs in the early 1970s for talking books for the blind. The 30cm disc rotating at 45rpm made it's first appearance in 1975 and makes the most of the best features of the 33 and 45rpm formats by offering a reasonable playing time (up to 12 mins/side) at a greatly enhanced volume and frequency response. EMI produceed a short run of classical LPs on this format in the early 1980s.

Despite the devastation caused to vinyl sales by the rapid rise in popularity of the CD, the format still thrives among keen record collectors and club disc jockeys.

WHO INVENTED THE POPSICLE IN 1905?

The Popsicle was invented by 11-year-old Frank Epperson in 1905. He left a container of soda and a stirrer outside overnight, and in the morning discovered them frozen together.