The Fallacy of Moss Always Growing Upon the North Side of Trees

Moss does not only grow on the north side of trees, as it is commonly believed by many. Moss typically grows on the north side but this rule only applies in the northern hemisphere. In the southern hemisphere, moss mostly grows on the south side of trees. The reason for this inversion is that in the northern hemisphere, because of the tilt of the Earth on its axis, the sun almost always appears to be a little south of directly overhead. That’s why rooms with windows facing south are brighter than rooms with windows facing north. This is important for moss because the north sides of trees within the northern hemisphere are shadier and therefore wetter. The south sides of trees get more sunlight, so water evaporates faster there

The Difference between QR Codes and Bar Codes

The primary difference between QR code’s and barcodes is that a barcode must be read horizontally, has a maximum storage capacity of 12 – 43 characters (e.g. universal product code etc.), and can store data in one dimension, whilst a QR code is capable of being read horizontally and vertically, has a maximum storage capacity of 4000 – 7089 characters, and can store data in two dimensions as a matrix bar code. Additionally, a QR code can be 10x smaller than a bar code and still be legible and a QR code can be read if damaged or parts missing. The term “QR code” is an abbreviation for “quick response code”

How Ocean Wind Turbines Produce Electrical Energy

Wind turbines run upon a simple engineering principle which is that of wind causing the blades to turn which rotates a shift within the turbine, with this shaft producing energy for the electrical generator. This electrical energy is pumped downward, 300’ below the water surface, and into cables buried below the seabed which connect to offshore substations which then connect to onshore power stations and finally residential homes and industrial and commercial buildings. Ocean wind turbines are typically 600’ high in altitude, with spinning fiberglass blades which are approximately 240’ long, with each blade weighing up to 30 tonnes. Because of this immense size, measurements (e.g. angle of blades etc.) are crucial during the construction phase to maximize efficiency and energy output. A single revolution of a wind turbine can generate enough electricity to power an entire family home for 24 hours

Tudor Period Mining and Metal Smelting

During the Tudor period, lead was utilized to build roofs and windows because it was easily mailable and resistive to corrosion. Farmers would mine for lead during the summer months when their crops did not need tending to in order to generate additional income. Mining during the summer months could earn an extra £5.00 which equates to £25,000 as of 2012 when accounting for inflation. Entire families often worked within the mines because 50 barrels worth of ore and soil would be extracted per day to meet the quota of what was required to be profitable. Smelting involved the use of white coal which is effectively dried wood from a kiln and was always setup upon windy hilltops or mountains because the wind would cause the fire blaze with more intensity therefore reaching higher overall temperatures. The best wood to make white coal is oak. Kilns must be airtight, so gaps were filled with clay. Knowing a kiln to be airtight was easily verifiable by searching for smoke as if smoke only came out of only the front entrance, the kiln was considered airtight. Ore was smashed into small pieces to help it smelt more rapidly which yielded approximately an 80% return upon investment. Metals were then refined using a secondary kiln, and smelted to remove any ash or impurities. The first burn removes ore from the rock, and the second burn removes impurities with the main impurity being sulphur. Molds were constructed using sand and wood to create divots which allowed the ore to be molded into blocks much the same as a modern day bar of gold. The sand gives the mold an indentation which archeologists use to identify Medieval bars of smelted ore

How Holograms Work

Holograms work by taking a single laser beam and splitting it into 2 parts, with the primary beam falling upon the object being photographed which then bounces away and falls onto a specialized screen, and the secondary beam falling directly upon the screen. The mixing of these beams creates a complex interface pattern containing a three dimensional image of the original object which can be captured on specialized film. By flashing another laser beam through the screen, the image of the original object suddenly becomes holographic. The term “holograph” is derived from the ancient Greek terms ”holo” which means “whole” and “graphos” which means “written”. The main issue with holographic technology is that unlike traditional visual media which needs to flash a minimum of 30 frames per second, scattering the image into pixels, a three dimensional holograph must also flash 30 frames per second, but of every angle to create depth of field, and the amount of data required far exceeds that of a traditional television photograph or video, even exceeding the capability of the internet until recently in 2014 when internet speeds reached 1 gigabyte per second

Civilizations Mastery of Metal By Manipulating Fire

The more carbon rich a fuel is, the more heat it produces. Typical wood fires burn at 700 degrees Celsius, however 6000 years ago, ancient people discovered the adaptation of burning wood in a low oxygen environment, only partially burning, but in doing so creating a much purer carbon rich fuel; charcoal. Charcoal can burn at temperatures upwards of 1100 degrees Celsius, hot enough to melt ore out of rock. The mastering of metal produced tools, finance, and weaponry, forever changing the evolutionary story of human beings. By the Middle Ages, the production of charcoal for metal smelting and metal work was a major industry


The First Successful Flight Machine

Paper makers Jacques-Étienne Montgolfier (pronounced “jha-ack ee-tee-yen mon-go-fee-yay”) and his brother Joseph-Michel Montgolfier (pronounced “zho-seef mee-shell mon-go-fee-yay”) created the hot air balloon after noticing that paper in their factory would be lifted by warm currents of air. This discovery lead to the innovation of hot air being confined within a bag which birthed the modern hot air ballon, an overall design which has remained relatively unchanged since its advent in 1783 despite advances in technology. As hot air is filled into a sack, the sack becomes less dense than the air which surrounds it, allowing the sack to rise in its altitude, be it 1 meter or 10,000 meters. The first successful untethered flight with passengers occurred on September 19, 1783. This initial flight was completed by a sheep, duck, and rooster. The first flight with humans occurred just 2 months later, with the hot air balloon raising 3000’ into the air and traveled a distance of 8 kilometers. The Age of Flight was born during this event as it was the first time in human history that a person or group had successfully lifted off the ground and remained in control of their flight path trajectory

The Discovery of the Route Which Allowed Explorers to First Climb Mount Everest

British born George Mallory, the person tasked with heading the team who first set out to climb Mount Everest in 1921, overlooked what is now used as the doorway to Mount Everest, the entry point of East Rongbuk Glacier. When Mallory first viewed this entry point, a narrow cliff within the mountainside wall, he dismissed it as too modest and small to warrant further investigation. Canadian Oliver Wheeler however was educated in the science of topography and geography from his father who surveyed the Canadian west coast Rocky Mountains and because of this, he did not view the dimensions of the cut to be as important as the pulse of water pouring out of that cut every afternoon. This enormous volume of expelled water signaled to Wheeler that a glacier had to be present at the head of the valley as it was the only possible explanation which fit. On July 30, 1921, Wheeler set out for the East Rongbuk Glacier and as he anticipated, he was able to make it up the ice field within 6 short days. As the East Rongbuk Glacier widened and curved around, it came directly to the base of the North Col, a sharp edged pass carved by glaciers in the ridge connecting Mount Everest and Changtse (pronounced “chang-see”). This opening became the key to unlocking Mount Everest and is still leveraged by climbers into the modern day. 6 days after setting out, on August 4, 1921, Wheeler sent a dak runner, which is essentially a Tibetan messenger, with a sketched map indicating his discovered exploit of the armor of Mount Everest for Mallory

The Traditional Sherpa’s of Mount Everest

The term “sherpa” is derived from the terms “shyar” (pronounced “shur”) which means “east” and “pa” which means “people” in Nepali. Migrants who populated the region around Mount Everest throughout antiquity came from the Tiber in the east, crossing the Nangpa La, which means “Elder’s Pass” in Nepali, to settle into Solukhumbu (pronounced “solo-koom-boo”), a region in which the minimum altitude is 4000 meters above sea level. Living a nomadic lifestyle is what made the sherpas expertise so desirable to British mountaineers who arrived a few centuries later. British mountain climbers realized the immense value that these expert travelers possessed which is how the relationship of domestic sherpas and foreign alpinists began. Sherpas were and continue to serve as porters and guides for foreign climbers and during the modern day, a sherpa trekking Mount Everest can expect to earn $6000.00 upon an expedition which intends to reach the summit