Category: Physics

The Inability of the U.S. Government to Enforce Safety Regulations for Firearms and the Consequences of This

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In the U.S., firearms are one of the few products which are exempt from federal consumer product safety regulations. This exemption derives from the Consumer Product Safety Act of 1972 which explicitly prevents the Consumer Product Safety Commission from regulating firearms and ammunition. As a direct result, there remains no federal agency responsible for ensuring the safety of firearms prior to firearms being sold to consumers. This legislative policy can be disasterous, as with the case of the SIG Sauer P320 pistol, a firearm which is prone to firing without the trigger having been pulled. The SIG Sauer P320 firearm is effectively always engaged within a cocked position, with the weapon ready to fire even when not intended by the end user (e.g. holstered and on the hip of the end user etc.). The SIG Sauer P320 is a striker fired firearm and does not have a manual safety by default. Early versions of the design had issues in which the internal components (e.g. trigger, sear, striker etc.) could inadvertently engage, causing an unintentional discharge. This has resulted in law enforcement and civilians accidentally harming themselves and others with accidental misfires. As of 2016, 80 people have been harmed by this particular firearm. In 2017, the manufacturer SIG Sauer Inc. offered a voluntary upgrade program, not a recall but rather an offer to modify the design of this firearm to improve safety features, including adjustments to the trigger, sear, and striker mechanisms

The Advent of the Steam Engine Permanently Changing the World

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Scottish mechanical engineer James Watt taught himself engineering and at age 27 he invented the modern steam engine. Watt was inspired by a pot of tea which he observed boiling, as the lid of the kettle would move when excessive heat had built up. Watt realized from this encounter that steam power may have the ability to be harnessed to perform work. Building upon a design already in existence which used steam to drive a piston to pump water out of mining operations, Watt revolutionized this technology by adding gears and wheels. Early steam engines only pumped up and down, but after Watt discovered how to effectively implement wheels and other facets, he took the idea of steam power and made it transportable via rotary motion. This simple alternate design paved the way for countless machines which succeeded it, as gears and wheels allow an infinite number of combinations to be constructed allowing for adaptations to all forms of industry. The world became smaller and faster seemingly overnight as humans and animals were no longer required to perform all forms of work. Watts’ engine started the Industrial Revolution, one of the most important periods within human history as it nearly autonomously created the modern technological age

Inventions and Discoveries Developed Simultaneously Throughout History

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In 1922, a pair of Columbia University sociologists named William Ogburn and Dorothy Thomas published a paper entitled “Are Inventions Inevitable?” which stated that Ogburn and Thomas discovered 148 examples of documented simultaneous invention. This phenomena occurred in 1876, when Alexander Graham Bell and Elisha Gray filed for a patent for the telephone on the same day with Bell’s unit having a separated listening and talking piece whilst Gray’s unit having a single listening and talking unit built into a conical structure. Other notable examples include Charles Darwin and Alfred Russel Wallace who came up with the Theory of Evolution simultaneously, Carl Scheele and Joseph Priestly who discovered oxygen at the same time, Isaac Newton and Gottfried Leibniz who discovered and developed calculus at the same time, Dmitri Mendeleev and Alexandre-Émile Béguyer de Chancourtois who discovered and developed the periodic table at the same time, and Orville and Wilbur Wright and Samuel Langley who invented the airplane during the same period of time. Knowing this, it would seem that the phenomena of simultaneous invention and discovery seems to be exceedingly common for human beings throughout history

The Reason the Coriolis Force Does Not Affect the Way Water Flows Within Drainage

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Both clockwise and counterclockwise flowing drains can be found regardless of the hemisphere in which they are observed. The Coriolis force is too weak to affect such small bodies of water, which is why this occurs. The effect is more measurably observed in large bodies of water like the ocean which is where hurricanes and typhoons begin to emerge. The reason the Coriolis effect takes place is because of the northern and southern pole. If observed from the northern pole, the Earth rotates counterclockwise however when viewed from the southern pole, the Earth appears to rotate clockwise. The analogy of a spinning disc helps to illustrate this image. From the top, a disc appears to spin clockwise as it plays the content stored upon it, but if viewed from below, that same disc would appear to the observer as if rotating counter clockwise

Scientists Who Studied the Sun by Looking Directly at it

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Thomas Harriot observed sunspots in 1610 but did not publish his work. In 1612 Harriot recorded that after having viewed the sun, his sight was “dim for an hour”. Oxford University astronomer John Greaves is quoted as stating that after sun observations, he would see afterimages which looked like a flock of crows within his field of vision. Sir Isaac Newton attempted to look at the sun in a mirror, which blinded him for 3 days and caused him to experience afterimages for months

The Industries Disrupted by U.S. Entrepreneur Steve Jobs and U.S. Inventor Thomas Edison

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Steve Jobs affected and subsequently disrupted the computer industry, the motion picture industry, the music industry, and the telecommunucations industry, all within a single lifespan. This achievement places Jobs at the status of a world renowned icon, a person like Thomas Edison who affected all of the same industries as well, swapping only the computer industry for the electric industry. Edison invented the incandescent light bulb for the electric industry, the phonograph for the music industry, and the motion picture camera for the film industry, and improved the telegraph and telephone for the telecommunications industry. Jobs developed the Macintosh computer for the computer industry, the animation studio Pixar for the film industry, the iPod and iTunes for the music industry, and the iPhone for the telecommunications industry

The Peculiarity of Isotopes Xenon 129, Xenon 132, and Krypton 80 Upon Mars

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Scientific study of Mars has revealed the existence of the isotope xenon 129 present within the almost non-existent Martian atmosphere. This has puzzled scientists as there are a limited number of understood methods to achieve such an outcome. The first method is via cosmic radiation, specifically galactic cosmic rays and/or solar cosmic rays striking elements like barium or bromine upon the Martian surface which can cause neutron capture, leading to the formation of xenon 129 naturally. This is because Mars has a very thin atmosphere and lacks a global magnetic field, which means it is less protected from cosmic radiation in comparison to the Earth. The second method is to detonate nuclear weaponry upon Mars which has left scientists dumbfounded as to how such an event could occur without third party intervention. Because of this, the majority of scientists believe the former method to be the causation, however there are scientists who take issue with this theory, mainly due to the high ratios of xenon 129, xenon 132, and krypton 80 within the Martian atmosphere which can be a byproduct of the fast neutron fission of uranium and plutonium weaponry, with all 3 of these isotopes able to be created by generating nuclear energy as well, the topography of Mars itself as vast glass like smooth regions exist which strikingly resemble the Trinity nuclear weaponry test detonation site in New Mexico, United States of America, as well as the high concentration of specific isotopes within specific regions (e.g. high levels of krypton 80 in the Cydonia region of Mars etc.)

How Antique Books are Forged and How to Detect Replica Antique Book Forgeries

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Modern day forgers are able to replicate rare books printed using a mechanical printing press by using photopolymer plates, a process which involves taking a high resolution photograph of a page which was printed using a printing press and allowing computer software to create a three dimensional printed image of that photograph with depth for each letter present. This method produces pages which have an imprint mark as if pressed by a printing press but its fatal flaw is that it also provides depth to small lines around the margin of text which are picked up during the printing process. These lines should have no depth as they are merely extra ink which has been caught during the printing process but with photopolymer replicas, because the software used to extract three dimensional characters reads every single bit of ink as a marker to place depth, these lines appear to have depth within forgeries which is an immediate red flag in terms of authenticity as originals have no reason to possess depth. These incidental inking lines around the margin of the page are referred to as “shoulder inking”, and if they possess depth of any degree, it is a strong indication that the piece is a modern day forgery

The Advent of Post It Notes

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Post It notes were invented by a chemical engineer whose bookmark fell off his hymn book while singing in church. The inventor, Arthur Fry, created an adhesive which worked like a basketballs skin in that some adhesive touches the object it’s stuck to, but not very much so it’s continually sticky dependant of how it lands each time

The Causation of the Colors of the Aurora Borealis

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The colors of the aurora borealis are layered with violet at the bottom, green in the middle, and red at the top, which signifies the structure of the atmosphere. Just as different chemicals create different colored flames (e.g. propane always producing a blue flame etc.), so too do photons bouncing around in the atmosphere off of different elements present. Nitrogen glows violet in a band at the bottom and oxygen glows green and red, creating a curtain 400 kilometers in length