The Extreme Temperatures of the Universe
For most of us, temperature is a very easy variable to overlook.
Our vehicles and indoor spaces are climate controlled, fridges keep our food consistently chilled, and with a small twist of the tap, we get water that’s the optimal temperature. Of course, our concept of what’s hot or cold is actually very narrow in the grand scheme of things.
Even the stark contrast between the wind-swept glaciers of Antarctica and the blistering sands of our deserts is a mere blip on the universe’s full temperature range. Today’s graphic, produced by the IIB Studio, looks at the hottest and coldest temperatures in our universe.
But First: What is Temperature Anyway?
Before looking at this top-to-bottom view of extreme temperatures, it helps to remember what temperature is actually measuring – kinetic energy, or the movement of atoms.
Hypothetically, atoms would simply stop moving as they reach absolute zero. As matter heats up, it begins to “vibrate” more vigorously, changing states from solid to gas. Eventually, plasma forms as electrons wander away from the nuclei.
With that quick primer, let’s dig into some of the hottest insights in this cool data visualization.
Highs and Lows on Planet Earth
Earth’s lowest air temperature, -135ºF (-93ºC), was recorded in Antarctica in 2010. Since then, scientists have discovered that surface ice temperatures can dip as low as -144ºF (-98ºC).
The conditions need to be just right: clear skies and dry air must persist for several days during the polar winter. In surroundings this cold, human lungs would actually hemorrhage within just a few breaths.
On the other end of the spectrum of extreme temperatures, the hottest surface reading on Earth of 160ºF (71ºC) occurred in Iran’s Lut Desert in 2005. In fact, the Lut Desert clocked the highest surface temperature in 5 out of 7 years during a 2003-2009 study, making it the world’s hottest location. The desert’s dark pebbles, dry soil, and lack of vegetation create the perfect conditions for blistering heat.
There are very few organisms that can withstand such temperatures, but one fascinating phylum makes the cut.
The Amazing Tardigrade
Commonly known as a “moss pig” or “water bear”, the one-millimeter long tardigrade is extremely resilient. While most organisms need water to survive, the tardigrade gets around this by entering a “tun” state, in which metabolism slows to just 0.01% of its normal rate.
When water is scarce, the creature curls up and synthesizes molecules that lock sensitive cell components in place until re-hydration occurs. Beyond dry conditions, the tardigrade can also survive both freezing and boiling temperatures, high radiation environments, and even the vacuum of space.
This video courtesy of TEDEd explains more about the hardy critter:
Testing the Limits
For better or worse, humans have pushed the limits of temperature here on Earth.
At MIT, scientists cooled a sodium gas to half-a-billionth of a degree above absolute zero. In the words of the Nobel Laureate Wolfgang Ketterle, who co-led the team: “To go below one nanokelvin (one-billionth of a degree) is a little like running a mile under four minutes for the first time.”
Not all experiments are conducted out of simple curiosity. Conventional bombs already explode at around 9,000ºF (5,000ºC), but nuclear explosions take things much further. For a split second, temperatures inside a nuclear fireball can reach a mind-bending 18,000,000ºF (10,000,000ºC).
The highest man-made temperature ever recorded is 9,900,000,000,000ºF (5,500,000,000,000ºC), created in the Large Hadron Collider at CERN in Switzerland. It was achieved by accelerating heavy lead ions to 99% the speed of light and smashing them together.
Highs and Lows of the Universe
While humans have been able to manufacture extremely hot and cold temperatures, the universe has created these extremes naturally.
Undoubtedly, the creation of the universe is made of the hottest stuff of all. The temperature of the universe at 10⁻³⁵ seconds old was a whopping 1 octillion ºC. Moments later, it “cooled down” to 1,800,000,000ºF (1 billion ºC) when the universe was less than two minutes old.
On the other end of the spectrum, the coolest natural place currently known in the universe is the Boomerang Nebula at -457.6ºF (-272ºC). It’s found 5,000 light years away from us in the constellation Centaurus, and it is currently in a transitional phase as a dying star.
As space exploration goes further than ever, these extreme temperatures may one day reach even hotter or colder heights than we can imagine.
Animation: How the European Map Has Changed Over 2,400 Years
The history of Europe is breathtakingly complex, but this animation helps makes sense of 2,400 years of change on the European map.
How the European Map Has Changed Over 2,400 Years
The history of Europe is breathtakingly complex. While there are rare exceptions like Andorra and Portugal, which have had remarkably static borders for hundreds of years, jurisdiction over portions of the continent’s landmass have changed hands innumerable times.
Today’s video comes to us from YouTube channel Cottereau, and it shows the evolution of European map borders starting from 400 BC. Empires rise and fall, invasions sweep across the continent, and modern countries slowly begin to take shape (with the added bonus of an extremely dramatic instrumental).
Below are nine highlights and catalysts that shifted the dividing lines of the European map:
146 BC – A Year of Conquest
146 BC was a year of conquest and expansion for the Roman Republic. The fall of Carthage left the Romans in control of territory in North Africa, and the ransack and destruction of the Greek city-state of Corinth also kickstarted an era of Roman influence in that region. These decisive victories paved the way for the Roman Empire’s eventual domination of the Mediterranean.
117 AD – Peak Roman Empire
The peak of the Roman Empire is one of the more dramatic moments shown on this animated European map. At its height, under Trajan, the Roman Empire was a colossal 1.7 million square miles (quite a feat in an era without motorized vehicles and modern communication tools). This enormous empire remained mostly intact until 395, when it was irreparably split into Eastern and Western regions.
370 AD – The Arrival of the Huns
Spurred on by severe drought conditions in Central Asia, the Huns reached Europe and found a Roman Empire weakened by currency debasement, economic instability, overspending, and increasing incursions from rivals along its borders.
The Huns waged their first attack on the Eastern Roman Empire in 395, but it was not until half a century later—under the leadership of Attila the Hun—that hordes pushed deeper into Europe, sacking and razing cities along the way. The Romans would later get their revenge when they attacked the quarreling Goths and Huns, bouncing the latter out of Central Europe.
1241 – The Mongol Invasion of Europe
In the mid-13th century, the “Golden Horde” led by grandsons of Genghis Khan, roared into Russia and Eastern Europe sacking cities along the way. Facing invasion from formidable Mongol forces, central European princes temporarily placed their regional conflicts aside to defend their territory. Though the Mongols were slowly pushed eastward, they loomed large on the fringes of Europe until almost the 16th century.
1362 – Lithuania
Today, Lithuania is one of Europe’s smallest countries, but at its peak in the middle ages, it was one of the largest states on the continent. A pivotal moment for Lithuania came after a decisive win at the Battle of Blue Waters. This victory stifled the expansion of the Golden Horde, and brought present-day Ukraine into its sphere of influence.
1648 – Kleinstaaterei
The end of the Holy Roman Empire highlights the extreme territorial fragmentation in Germany and neighboring regions, in an era referred to as Kleinstaaterei.
Even as coherent nation states formed around it, the Holy Roman Empire and its remnants wouldn’t coalesce until Germany rose from the wreckage of the Franco-Prussian War in 1871. Unification helped position Germany as a major power, and by 1900 the country had the largest economy in Europe.
1919 – The Ottoman Empire
The Ottoman Empire—a fixture in Eastern Europe for hundreds of years—was in its waning years by the beginning of the 20th century. The empire had ceded territory in two costly wars with Italy and Balkan states, and by the time the dust cleared on WWI, the borders of the newly minted nation of Turkey began at the furthest edge of continental Europe.
1942 – Expanding and Contracting Germany
At the furthest extent of Axis territory in World War II, Germany and Italy controlled a vast portion of continental Europe. The map below shows occupied land and areas of influence at the height of Germany’s territorial expansion.
After the war, Germany again became fragmented into occupation zones—this time, overseen by the United States, France, Great Britain, and the Soviet Union. Germany would not be made whole again until 1990, when a weakening Soviet Union loosened its grip on East Germany.
1991 – Soviet Dissolution
In the decades following WWII, the political boundaries of the European map remained relatively stable—that is, until the dissolution of the Soviet Union in 1991. Almost overnight, the country’s entire western border splintered into independent nations. When the dust settled, there were 15 breakaway republics, six of which were in Europe.
Bonus: If you liked the video above, be sure to watch this year-by-year account of who ruled territories across Europe.
Mapped: Second Primary Languages Around the World
This fascinating map highlights the second most commonly spoken primary language in almost nearly every country.
Mapped: Second Primary Languages Around the World
After the primary language, what second languages are used as native tongues in your country?
The answer reveals a lot about history and location. Whether through immigration, colonization, or local culture, a primary language can either spread around the world or remain rooted in place.
This map from MoveHub shows the second most commonly spoken primary language in most countries, using data from the CIA World Factbook and Wikipedia as of February 2021.
The Difference Between Primary and Secondary Languages
First, it’s important to differentiate between primary languages and secondary languages.
A primary language—also known as a first or native language—is the language we use most frequently to communicate. These are languages we are usually born with, have a lot of exposure to, and use at home.
On the other hand, a secondary language is one we learn or pick up after our primary language. In many countries, English is the most commonly learned, with close to 1 billion speakers.
But a map of common second languages can simply show just how many countries prioritize learning English, the de-facto international language in many organizations. Instead, this map highlights the movement of people by showing the second-most common primary language.
The Second Most Common Primary Languages by Country
Even when filtering by primary language use, however, English and other Indo-European languages dominate the world.
With 55 countries speaking it as the second-most common primary language, English came out on top.
|Top 10 Most Popular Second Primary Languages||Number of Countries|
The use of English as a second primary language was primarily concentrated in Western Europe, Northern Africa, and Southeast Asia and Oceania.
Similarly to second-place French with 14 countries and third-place Russian with 13 countries, English was most common in proximity to English-speaking countries or where there was a history of immigration.
Other second-most common primary languages highlighted different cultures within countries, such as China’s second-most common language Cantonese. Alternatively, they showed the primary indigenous language before colonization, such as the Quechua languages in South America.
What other interesting or surprising language patterns can you spot in the map above?
Technology4 weeks ago
Mapped: The Fastest (and Slowest) Internet Speeds in the World
Misc2 hours ago
Animation: How the European Map Has Changed Over 2,400 Years
Personal Finance2 weeks ago
How Does Your Personality Type Affect Your Income?
Markets3 weeks ago
The World’s 100 Most Valuable Brands in 2021
Datastream3 weeks ago
Visualizing the Fastest Trains in the World
Markets1 week ago
The World’s Biggest Real Estate Bubbles in 2021
Misc3 weeks ago
A Visual Introduction to the Dwarf Planets in our Solar System
Money1 week ago
The Richest People in Human History, to the Industrial Revolution