Earth has experienced at least five Ice Ages: the Huronian, the Cryogenian, the Andean-Saharan, the Karoo, and the Quaternary. The latest of these is the Quaternary Ice Age, which began 2.6 million years ago and is still ongoing. That might sound off given that the popular conception of an ice age is of a world blanketed in snow and roaming with wooly mammoths, but the scientific definition only requires that a substantial ice sheet be present on the Earth’s surface, and Antarctica fits the bill. While their causes vary, ice ages are typified by periods of sustained global cooling and glacial expansion. Going by this, the Little Ice Age qualifies, though it is also an ice age within an ice age, making it a sort of matryoshka doll climate event. The Little Ice Age is not the only lesser ice age, though it is the best known as it occurred the most recently and within recorded history. After having touched on similarities, our next logical step is to examine what makes the Little Ice Age different.
The recent COVID-19 pandemic has turned our world upside down. From the way we greet each other to the schedule of our daily routines, it’s safe to say that everything that was considered the norm at the beginning of 2020 has completely changed. While most people’s eyes are on health officials, tech giants and start-up companies have been using this time to create new inventions to propel society further – or so they say. Here we will analyze the new products and tech trends that have arisen in the wake of this pandemic, what they do, and if they actually serve to help society.
Crowds are often overlooked as a segment of psychology. Most people would like to say that they are independent and trail away from what others do, however, much goes unnoticed when talking about the human behaviour of an individual when placed in a large mass of others. This type of psychology becomes a unique aspect of how one may think purely based off of the interests and situation of a crowd. There are several theories and the concept itself plays a large role in several real-world situations with effective consequences.
The United Nations Educational, Scientific, and Cultural Organization (UNESCO) has several branches and initiatives aimed at promoting the subjects in its name across the globe. One of these is the World Heritage Committee which, among other things, decides what locations are worth preserving for various reasons. These reasons are grouped together in a list of ten selection criteria, each denoted by a Roman numeral. To explain the Committee’s selection criteria and World Heritage sites more broadly let us go through this list and examine an illustrative example for every criterion.
Petroleum (or oil) and natural gas are widely used sources of fuel. Around the world many transportation, energy, and heating infrastructures depend in large part on one or both of these hydrocarbon-rich fuels, petrochemical products. While in the past it may have seemed inconceivable that people would have to step away from fossil fuels, climate change increasingly necessitates greener alternatives. It is also hard to imagine life without plastics. For many applications, such as in healthcare, there may be no better materials. A future with zero plastic is neither warranted nor desirable, but the threats to various ecosystems are likely to force the development of greener and more sustainable materials.
The earliest recorded instance of heeled shoes comes from tenth century Persia. Mounted soldiers wore shoes with heels to make it easier to keep their feet in their stirrups, as the heels would catch the back of the stirrup’s tread and stop their feet from sliding in and out. This same use can be seen to this day with cowboys and other jobs that involve riding horses. During this period heels went from being a masculine sign of strength and wealth to a non-gendered court fashion to a feminine fashion statement.
One way of looking at history is in terms of progress. Many historians and fans of the subject laud Rome for its advances in military organization, infrastructure, and civics. Similar adulation is often heaped upon the Renaissance for the strides made in philosophy, arts, and sciences during that period, which in turn set the stage for the Age of Enlightenment. But what of the time between shining antiquity and the rekindling that was the Renaissance? lternately called the Dark Ages, the Middle Ages, and the Medieval Ages, the time period from roughly the 5th century to the 15th century is usually framed in the West as its own era of history.
What was the deadliest maritime disaster? The Titanic seems like the most obvious answer. However, a little over thirty years after the Titanic tragedy, a 25,000 ton ship sunk in the Baltic Sea, taking almost 9,000 people down with it. This ship was the Wilhelm Gustloff.
What was the true story and history of Pocahontas? Many people have seen the famous Disney movie about Pocahontas a Native American princess and Captain John Smith, but to what extent was it true? In this lesson, we straighten out the facts from the myths to share you the true story and history behind Pocahontas.
Architecture is a form of art. One major form of architecture is Brutalist architecture that arose in the beginnings of WWII. In this lesson, we learn about symbolism in architecture and Brutalism’s origins, history, and impact.
Staple crops are foods that shape the dietary foundations of one or more regions. Rice, wheat, and corn provide over half of the world population’s caloric intake. In this lesson, we learn about the history of wheat and its global impact.