We are living on a tiny life-bearing rock, an oasis, in a large, very large and hostile desert called “Universe”. The universe is big, really big, in fact even our solar system is shockingly large compared to Earth. But again, our brains have problems dealing with the big numbers and the large objects.
Jacqui Frank of Business Insider has prepared video comparing our planet with large objects (and distances) in the Universe. These amazing to-scale visuals will help to recognize how small (and fragile) our planet is.
Continue reading Pale Blue Dot vol. 2 – The Tiny Earth
Aboard the International Space Station, Expedition 46 Commander Scott Kelly of NASA, Flight Engineer Tim Kopra of NASA and Flight Engineer Tim Peake of the European Space Agency wished the people of Earth a Happy New Year. Kelly is nearing the completion of the ninth month of a year-long mission on the orbital laboratory, while Kopra and Peake arrived December 15, 2015 to begin a six-month mission on the complex.
Continue reading A “Happy New Year” Message from the International Space Station
Our planet is getting warmer every year, and the horrible fact is, the global warming is accelerating. As a natural result, the glaciers are melting at an increasing speed.
Almost 10% of the world’s land surface is currently covered with glaciers, mostly in places like Greenland and Antarctica. The amount of water locked up in ice and snow is only about 1.7 percent of all water on Earth (332,500,000 cubic miles, or 1,386,000,000 cubic kilometers), but the majority of total freshwater on Earth, about 68.7%, is held in ice caps and glaciers. And if all land ice melted the seas would rise about 70 meters (about 230 feet).
What if all these ice melted? What would Earth look like? Alex Kuzoian of Business Insider prepared a video showing the effects of the global melting, and if it happens, “this would dramatically reshape the continents and drown many of the world’s major cities.”
Continue reading What Earth would look like if all the ice melted
Our old planet, the Earth is 4.54 billion years old. In fact, the human mind can no longer make any sense of the large numbers like that. Numbers like 1, 2, 14, 20, 50 are all quantities that we encounter quite frequently in our daily lives. And out brain evolved to conceptualize numbers like that: our ancestors saw two lions; they hunted five deer in one hunting party, the population of their tribe was 20, etc… But when the numbers are getting big, i.e. 1,000; 10,000… the problem begins: these numbers become increasingly difficult to conceptualize. Now what happens when we try to conceptualize quantities like billions, like the Earth’s age? We can’t actually rationalize the immensity of such a big number. Because we haven’t a model of 4.54 billion that’s been compressed into something recognizable to the human mind.
Continue reading If Earth’s life time was the distance from Los Angeles to New York City
An amazing video published on youtube by National Geographic. How deep is the ocean (on average) and the Mariana Trench, the deepest part of the world’s oceans?
Continue reading How deep is the ocean?
You must watch this! An amazing video by the filmmakers led by Julian Tryba: in May 2015, over the span of three weeks, they traveled in the Southwest of the United States (3,000 miles through Utah, Arizona, Nevada, and California) and filmed timelapses of several strikingly beautiful landscapes. Then they spliced the films together to create this wonderful video, a strange day-night world.
Continue reading Timeless Dreams – the Earth in daytime and nighttime
The orcas are amazing! They are known for their high intelligence, curiosity, playfulness, and ability to solve problems. But this female killer whale named Kasatka who lives at SeaWorld San Diego takes it one step further: she uses a bait fish to hunt a bird!
Continue reading Killer Whale uses a bait fish to hunt a bird (video)
Chris Hadfield, the ex-commander of the International Space Station recorded a revised cover version of David Bowie’s famous song “Space Oddity” on board. The funny clip contains great views of planet Earth and nice scenes inside the space station.
Continue reading David Bowie’s Space Oddity – ISS Cover
Last week, NASA’s New Horizons spacecraft began sending stunning shots of Pluto on its flyover back to the Earth. Here is a beautiful Pluto flyover video created from the images acquired by New Horizons’ closest-approach to the dwarf planet on July 14, 2015.
Continue reading Pluto flyover animated video
It’s one of the basic Newton laws: how fast something falls due to gravity is determined by a number known as the “acceleration of gravity”, which is 9.81 m/s2 at the surface of Earth. The acceleration of gravity, shortly “a” means that in one second, any object’s downward velocity will increase by 9.81 m/s because of gravity. The gravity accelerates everything at exactly the same rate.
Continue reading A Bowling Ball and Feather Falling in a Vacuum (video)