There are a total of 1154 UNESCO World Heritage Sites in the world (as of July 31, 2021: 897 Cultural, 218 Natural, and 39 Mixed) in 167 countries. Here are the top 20 countries having the most number of UNESCO World Heritage sites.
Category Archives: History
Oldest buildings in America
The United States wasn’t built in a day. Over time it has taken many shapes and forms to tell the tale of our nation’s history. The houses, cabins, forts, missions, and businesses of the time help tell the story.
Did European Colonisation precipitate the Little Ice Age?
Many of us think that rapid environmental change is a quintessentially modern crisis. Today, temperatures are soaring, topsoil is washing away, phosphorous is being diluted, forests are retreating, pesticides are sterilising farmland, fertilisers are choking waterways, and biodiversity is plummeting under the onslaught of overpopulated, industrialised societies. Some of these changes are indeed truly new. …
Continue reading “Did European Colonisation precipitate the Little Ice Age?”
The Costs of Replicating Ancient Architectural Wonders Today
In “Original Copies“, Bianca Bosker looks at a current trend in China to recreate some of human’s civilization greatest architectural achievements. Various elite suburbs in the country feature a variety of world wonders, from a 108-foot copy of the Eiffel Tower to picturesque Venetian scenescapes.
Astronaut Honors Holocaust Remembrance Day from space with “Moon Landscape” drawing by Holocaust victim Petr Ginz
NASA Astronaut Andrew Jay “Drew” Feustel, who is currently living and working aboard the International Space Station, published a photo on his Twitter account with a replica of the “Moon Landscape” drawing by Holocaust victim Petr Ginz to honor Holocaust Remembrance Day (Yom HaShoah). The replica of the painting was first flown in space by Ilan Ramon …
People today are living longer, healthier, and happier lives than ever before
In a video published by Bill Gates on his Youtube channel, originally titled “Humanity is fighting back against the Grim Reaper”, Steven Pinker, the Canadian-American cognitive psychologist, linguist, popular science author, and Johnstone Family Professor in the Department of Psychology at Harvard University explains why people today are living longer, healthier, and happier lives than ever before. …
Continue reading “People today are living longer, healthier, and happier lives than ever before”
Why meteoroids explode before they reach Earth?
On 15 February 2013, an approximately 20-meter (66 feet) meteoroid see notes 1 entered Earth’s atmosphere over Russia with a speed of 19.16 ± 0.15 kilometers per second (60,000-69,000 km/h or 40,000-42,900 mph). Its mass is estimated at 7,000 to 10,000 tons, one of the largest meteoroids entered Earth’s atmosphere in recent history. Then, at 9:20 …
Continue reading “Why meteoroids explode before they reach Earth?”
The Oldest Surviving Aerial Photo was Taken in 1860
On October 13, 1860, the early American photographer James Wallace Black (February 10, 1825 – January 5, 1896) climbed into a hot air balloon (named Queen of the Air) with his camera, and photographed Boston from a hot-air balloon at 1,200 feet (around 365 meters). On that day, Black took 8 plates of glass negative; …
Continue reading “The Oldest Surviving Aerial Photo was Taken in 1860”
A new star in heavens: how Crab Nebula was born
This is how the Crab Nebula was born: in 1054 A.D, a new, very bright star has appeared in Earth’s sky, in the constellation Taurus. Chinese, Japanese, Korean, and Arab astronomers observed the event and noted: “a new bright star emerged in the heavens”. The star was so bright: for nearly three weeks, it was …
Continue reading “A new star in heavens: how Crab Nebula was born”
Top 10 Most Powerful Earthquakes in Recorded History
Here are the top ten most powerful earthquakes (by the Moment magnitude scale, MMS; denoted as Mw or M) in recorded history, according to the United States Geological Survey (USGS), a scientific agency of the United States government.
