Ganymede Global Geological Map And Global Image Mosaic.

Ganymede Global Geological Map And Global Image Mosaic.

Ganymede global geological map and global image mosaic.

USGS Astrogeology Science Center.

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More Posts from Tres-4b-blog and Others

6 years ago

shoutout to coffee


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6 years ago
An Amazing Split View Of The Milky Way And A Pristine German River By Hjalmar111

An Amazing Split View of the Milky Way and a pristine German river by hjalmar111

★☆★ SPACE ★☆★


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6 years ago
The Sun, As Of October 8, 2016.

The Sun, as of October 8, 2016.


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5 years ago

Nikola Tesla - The True Discoverer of the Rotating Magnetic Field

Nikola Tesla - The True Discoverer Of The Rotating Magnetic Field
Nikola Tesla - The True Discoverer Of The Rotating Magnetic Field

"Many erroneous statements have appeared in print relative to my discovery of the rotating magnetic field and invention of the induction motor which I was compelled to pass in silence. Great interests have waged a long and bitter contest for my patent rights; commercial animosities and professional jealousies were aroused, and I was made to suffer in more than one way. But despite of all pressure and efforts of ingenious lawyers and experts, the rulings of the courts were in support of my claims for priority in every instance without exception. The battles have been fought and forgotten, the thirty or forty patents granted to me on the alternating system have expired, I have been released of burdensome obligations and am free to speak...

"...A few words should be said in regard to the various claims for anticipation which were made upon the issuance of my patents in 1888, and in numerous suits conducted subsequently. There were three contestants for the honor, Ferraris, Schallenberger and Cabanellas. All three succumbed to grief. The opponents of my patents advanced the Ferraris claim very strongly, but any one who will peruse his little Italian pamphlet, which appeared in the spring of 1888, and compare it with the patent record filed by me seven months before, and with my paper before the American Institute of Electrical Engineers, will have no difficulty in reaching a conclusion. Irrespective of being behind me in time, Prof. Ferraris's publication concerned only my split-phase motor, and in an application for a patent by him priority was awarded to me. He never suggested any of the essential practical features which constitute my system, and in regard to the split-phase motor he was very decided in his opinion that it was of no value. Both Ferraris and Schallenberger discovered the rotation accidentally while working with a Gullard and Gibbs transformer, and had difficulty in explaining the actions. Neither of them produced a rotating field motor like mine, nor were their theories the same as my own. As to Cabanellas, the only reason for his claim is an abandoned and defective technical document. Some over-zealous friends have interpreted a United States patent granted to Bradley as a contemporary record, but there is no foundation whatever for such a claim. The original application only described a generator with two circuits which were provided for the sole purpose of increasing the output. There was not much novelty in the idea, since a number of such machines existed at that time. To say that these machines were anticipations of my rotary transformer is wholly unjustified. They might have served as one of the elements in my system of transformation, but were nothing more than dynamos with two circuits constructed with other ends in view and in utter ignorance of the new and wonderful phenomena revealed through my discovery."

–Nikola Tesla

“Some Personal Recollections.” Scientific American, June 5, 1915.


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6 years ago
Goddamn

Goddamn


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6 years ago

Productive Things That Aren’t Studying

washing the dishes

making your bed

tidying your book/dvd shelf/shelves

cleaning the cupboard/wardrobe

reading

sleeping

writing a blog

planning your month/week/day

replying to messages or asks

responding to emails

sorting through letters/mail

clearing your email inbox

organising stationery

clean your sinks

clean your toilets

pet your pet

sort through old clothes

give to charity

go on a walk

go on a run

clean down any surfaces

work out

meal prep

get rid of empty shampoo bottles from the shower

clean out old food from the cupboard/fridge

empty out your school bag

call your parent

unfriend/unfollow people you no longer interact with

watch a TEDTalk

empty the bins/trash

clean the mirrors in your house

hug your pet

wash some clothes

buy any birthday cards/presents that you need to

reply to any old texts

make a tumblr post on productive things that aren’t studying


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6 years ago
This Is The Binary Code To The “Hello, World!” Program, A Simple Computer Program Used In Beginner

This is the binary code to the “Hello, World!” program, a simple computer program used in beginner classes to introduce basic programming syntax. The program’s sole function is to print “Hello, World!” on screen: an uplifting, symbolic gesture in which the computer (an emerging technology when the program was first created) greets the world full of hope, and of wonder.


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6 years ago
Saturn, Titan, Rings, And Haze Via NASA Https://go.nasa.gov/2LlskxP

Saturn, Titan, Rings, and Haze via NASA https://go.nasa.gov/2LlskxP


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5 years ago
In 1952, Wernher Von Braun Wrote A Book Called “Project Mars” Which Imagined That Human Colonists

In 1952, Wernher von Braun wrote a book called “Project Mars” which imagined that human colonists on Mars would be led by a person called “Elon”. Photo : businessinsider.com


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astronomy mixed with nostalgia and future

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