(L-R) Jade Chapman, Maryam Maquillage, Mariah Carey, Laura Lee and Arika Sato attend M.A.C Cosmetics Mariah Carey Beauty Icon Launch at Baccarat Hotel on December 3, 2016 in New York City. (Photo by Theo Wargo/Getty Images for M.A.C)

It is already one of the world’s most iconic cities, but this incredible collection shows how much Paris has changed over the course of the past century. The collection, by French photographer Julien Knez, shows Paris in the 1940s against a backdrop of how the same places look today. Knez says he put the striking collection together to celebrate the 71st anniversary of the city’s liberation from Nazi control in August 1944. Here: Soldiers outside the Hotel De Ville in the 1940s. (Photo by Julien Knez/Caters News)

An invited guest enjoys a private listening experience of a test unit of the Sennheiser HE 1 sound system, which is expected to retail for about S$77370 ($55000), in a hotel suite during the CanJam headphone and personal audio expo in Singapore February 21, 2016. (Photo by Edgar Su/Reuters)

Shane Baker of Minnesota poses for a photo with adult film actress Rachel Starr at the Pornhub booth at the 2017 AVN Adult Entertainment Expo at the Hard Rock Hotel & Casino on January 18, 2017 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images)

Daisy Lowe attends The Phillips British Academy Awards 2011 at The Grosvenor House Hotel on May 22, 2011 in London, England. (Photo by Dave Hogan/Getty Images)

(L-R) Natalie Burns and Taunia Arave battle as referee Nick Stevens (R) looks on during the US National Sumo Championships at the Riviera Hotel & Casino June 24, 2011 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images)

There are so many little, seemingly simple, yet ingenious things that make our life so much simpler. Take scotch tape for example. It’s just a roll of thin plastic film that is sticky on one side, yet how much simpler it made the packaging process of various goods! However, the removal of scotch tape, now there is a problem. Unless you have something sharp, it’s nearly impossible to tear it. To combat this, a brand new product has come out. Rip cord tape – is a regular scotch tape combined with a rip cord. The manufacturer of this product claims that it will make the removal of scotch tape much easier. However, when we look at the pictures, we realize, that yes, the rip cord will remove the middle of the scotch tape; however, the sides will remain in place! This will once again present a problem during the removal process.

It is amazing how much the humanity can change the face of the earth. Not only can it create huge craters, which look a lot like craters from meteors, they leave a big enough impact that it can be seen from space. Though this crater, caused by a massive explosion on 1 July 1916, looks large, being 90 feet deep and 300 feet across; it is nowhere big enough to be viewed for space. A common misconception is that the Great Wall of China can be seen from space. In reality, however, it is impossible. Not only is it of the same color as the earth near it, it is also not that wide. Deforestation, on the other hand, can be clearly seen from space. Also, at night, all the lights that the large cities produce are also very visible.