Fifty Unbelievable Facts About Earth

How to get more likes on Facebook
Focus on what you post
Photos get 53% more Likes,
104% more comments and 84% more click-throughs.
One study found that, on Facebook, photos (the “photo” post type) received more engagement than the average post. The “average” post rubric included both “text” and “link” posts.
Length of post
Posts with 80 characters or less get 66% more engagement. Among retail brands, posts with 80 characters or less get 66% more engagement (# of Likes and comments) than posts with 81 or more characters.
Post content
“Question” posts get 100% more comments.
Posts that spark dialogue get 100% more comments than “non-question” posts.
Focus on when you post
Facebook activity by time of day
On weekdays, Facebook activity (as defined by the number of posts and comments published per hour) peaks around 3 PM EST. There are also notable spikes in the 11AM spikes in the 11AM hour and 8PM hour.
Facebook activity by day of the week
Facebook activity (as defined by the number of posts and comments published per day) peaks on Wednesday.
Daily posts frequency
Posting 1-2 times a day gets 40% more engagement.
Among retail brands, posting 1-2 times a day gets 40% more engagement (# of Likes and comments) than posting 3 or more times a day.
Weekly post frequency
Posting 1-4 times a week gets 71% more engagement.
Among retail brands, posting 1-4 times a day gets 71% more engagement (# of Likes and comments) than posting 5 or more times a day.
Just because activity peaks at certain times doesn’t mean those are the best times to post. Always test to see what works best for you.

Fifty Unbelievable Facts About Earth
$150 billion Total cost of the International Space Station, the most expensive object ever constructed.
3.7 billion miles The furthest distance a picture of the earth has been taken form, known as the ‘Pale Blue Dot’
Ten Days The amount of time a Tarigrade, the hardiest animal in existence, can exist in a vacuum.
2:00 Minutes. The amount of time a human being can survive in space unprotected.

China’s air pollution is visible from space The Great wall is not
There are not 24 hours in a day 23 hours, 56 minutes and 4 seconds – the time it takes Earth to rotate on its axis, called a sidereal day
38,000 The number of man-made objects that have orbited the earth since the launch of Sputnik in 1957.
Earth is smoother than a bowling ball. High mountains and deep ocean trenches make up only 1/5000th of the earth’s circumference
22,000 The current number of man-made objects orbiting Earth that are 10 cm or larger
Functioning satellites 5%
Spent rockets 8%
Fragments and inactive satellites 87%

1 Object a day NASA estimates on average, that one piece of space junk returns to Earth each day
100 tons
Of small meteorites, mainly fragments of dust, enter the earth’s atmosphere every day
The largest meteor ever to fall to earth left no crater The Hobo Meteorite was flat on both sides, so may have skipped through the atmosphere like a stone over water.
The Ozone hole is shrinking In 2012, the hole in the layer was smaller than it has ever been in the last 10 years
12 miles (19km) The Armstrong Limit Altitude at which it is necessary to wear a pressurized suit. Without one, water boils at body temperature.
4.3 Quadrillion pounds The value of the earth’s atmosphere based on the price of CO2: 1.3p per cubic metre.
8.6 million Lightning strikes per day
Dinosaurs could only exist because the earth’s atmosphere once contained far more oxygen. Reptiles and amphibians can no longer grow to such large sizes.
Water on Earth is 97% Salted
3% Fresh
Antarctica has as much ice as the Atlantic Ocean has water
1 liter of seawater contains 13 billionths of a gram of gold
2,000 The average number of marine species described each year
90% of rubbish in the world is plastic
99% of the living space on Earth is represented by oceans
8-12 fatalities per year caused by Sharks. 100 Million Sharks killed per year to harvest fins.
Up to 1 million species live in the world’s oceans 2/3 are yet to be described
90% of all volcanic activity occurs in the oceans
860 km diameter If all the water on the earth were scrunched up into a ball. About as large as Saturn’s Ice moon Tethys.
10.9 km The depth of the deepest area if the ocean the Mariana Trench
Earth is the only planet in our solar system with plate tectonics Without them, carbon wouldn’t be consumed and recycled, and the Earth would overheat (Just like Venus).
Rare Earth Elements are not rare. Lutetium, the least abundant rare earth element, is nearly 200 times more common in the earth’s crust than gold.
99% of the earth’s gold lies in its core Enough to form a 1.5-foot coat around the surface of the earth.
5500 C/9900F The temperature of the earth’s core As hot as the surface of the Sun
A solid iron ball 1,500 miles wide sits at the heart of the earth. Although it is white hot the pressure is so high the iron cannot melt.
12.4/6371 Km +-0.2% Depth of earth’s crust that the deepest ever borehole, Russia’s Sakhalin-I, drilled to, compared to the distance to the center of the earth.
55 Tonnes The weight of the earth’s largest crystals, found beneath Mexico’s Naico silver mine.
2.8 km/1.7 miles The depth at which bacteria have been found. They survive by using radioactivity from uranium to convert water into usable energy.
4 km/2.5 miles Below the Amazon River lies the Rio Hamza ‘river’ At some points over 400 km wide, it flows at less than 1 mm per hour through rock.
40 Million tonnes The amount of nutrient rich dust that wind transports from the Sahara to the Amazon rain forest every year.
In Turkmenistan there is a “Door to Hell” a collapsed gas well formed a crater that has burned for more than 40 years.
3.5 Billion years The age of bacteria fossils found in Australia. This is longer than earth’s atmosphere has had oxygen.
57.8C/136 F The hottest temperature ever recorded, in 1992 at El Azizia, Libya
2 million years since the latest rainfall in the driest place on earth Dry Vallys, Antartica.
-89.2 C/ -128.6 F The coldest temperature ever recorded, in 1983 at Vostok Station, Antartica
2 cm The distance the continents move every year
75% of the earth’s animal species could be extinct within 300 years
14% The percentage of the world’s species that have been identified
200,000 people born every day
Gobekli Tepe, Turkey The oldest known human-made religious structure, most likely erected in the 10th millennium
106 billion People have existed on planet earth
9.2 billion The population on Earth by 2050
2 people die every second

Fifty Unbelievable Facts About Earth

shared by Maylor on May 01, 2013 in Science


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A collection of amazing facts about Earth, ranging from space right down to the Earth's core.
Tags: earth
Category: Science
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