Download E-books Decoding the Heavens: A 2,000-Year-Old Computer--and the Century-long Search to Discover Its Secrets PDF

By Jo Marchant

In Decoding the Heavens, Jo Marchant tells for the 1st time the complete tale of the hundred-year quest to decipher the traditional Greek desktop often called the Antikythera Mechanism. alongside the best way she finds a various solid of outstanding characters and explores the deep roots of contemporary expertise in historical Greece and the medieval ecu and Islamic worlds. At its center, this can be an epic event and secret, a booklet that demanding situations our assumptions approximately expertise in the course of the ages.

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Download E-books The Moon that Wasn't: The Saga of Venus' Spurious Satellite (Science Networks. Historical Studies) PDF

By Helge Kragh

The planet Venus is the nearest neighbour to the Earth and in different respects just like our globe. It revolves round the solar at an ordinary distance of zero. seventy two astronomical devices, in an elliptical orbit of eccentricity zero. 007. The corresponding three numbers for the Earth are 1 and nil. 017. The suggest density of Venus is five. 2 g/cm , three that of the Earth five. five g/cm . Venus’ acceleration of gravity at its equator is eight. nine 2 2 m/s , in comparison with nine. eight m/s on the Earth. The get away speed is 10. four km/s, whereas the corresponding ?gure of the Earth is eleven. 2 km/s. even though the mass of Venus is just a little smaller than that of the Earth – the ratio is M /M =0. 815 V E – the diameters of the 2 planets are virtually an identical. In different phrases, Venus is certainly a sister planet of the Earth. In past occasions, while virtually not anything used to be identified in regards to the actual con- tions of Venus, the similarity seemed even improved than at the present time. not just was once Venus’ interval of rotation regarded as on the subject of that of the Earth, it was once additionally p- sible (and certainly universal) to visualize clever lifestyles on Venus.

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Download E-books An Astronaut's Guide to Life on Earth: What Going to Space Taught Me About Ingenuity, Determination, and Being Prepared for Anything PDF

By Chris Hadfield

Colonel Chris Hadfield has spent many years education as an astronaut and has logged approximately 4000 hours in house. in this time he has damaged right into a area Station with a Swiss military knife, disposed of a dwell snake whereas piloting a aircraft, and been briefly blinded whereas clinging to the outside of an orbiting spacecraft. the key to Col. Hadfield's success-and survival-is an unconventional philosophy he realized at NASA: arrange for the worst-and get pleasure from each second of it.

In An Astronaut's consultant to lifestyles on the earth, Col. Hadfield takes readers deep into his years of teaching and house exploration to teach how you can make the very unlikely attainable. via eye-opening, wonderful tales full of the adrenaline of release, the enchanting ask yourself of spacewalks, and the measured, calm responses mandated by way of crises, he explains how traditional knowledge can get within the means of achievement-and happiness. His personal striking schooling in house has taught him a few counterintuitive classes: don't visualize good fortune, do care what others imagine, and continually sweat the small stuff.

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Download E-books Microscope: A Fractal Role-Playing Game of Epic Histories PDF

By Ben Robbins

Humanity spreads to the celebrities and forges a galactic civilization...

Fledgling countries come up from the ruins of the empire...

An historical line of dragon-kings dies out as magic fades from the realm...

These are all examples of Microscope video games. are looking to discover an epic heritage of your individual construction, enormous quantities or hundreds of thousands of years lengthy, all in a day? That's Microscope.

You won't play the sport in chronological order. you could defy the bounds of time and house, leaping backward or ahead to discover the components of the background that curiosity you. are looking to jump 1000 years into the long run and spot how an establishment formed society? are looking to bounce again to the early life of the king you simply observed assassinated and discover what made him the sort of hated ruler? That’s general in Microscope.

You have great energy to create... and to damage. construct attractive, tranquil jewels of civilization after which eat them with nuclear hearth. Zoom out to monitor the majestic tide of background wash throughout empires, then zoom in and discover the lives of the folk who persisted it.

Mock chronological order.
Defy time and space.
Build worlds and smash them.

A role-playing online game for 2 to 4 avid gamers. No GM. No prep. Microscope used to be playtested for 2 years via over a hundred and fifty amazing gamers.

"Ben Robbins' Microscope could be the clearest-written online game textual content I've ever learn - that's precious, since it is additionally some of the most leading edge video games I've encounter in decades. Microscope engagingly demanding situations assumptions and upends long-held conventions of play whereas providing a unique and fulfilling night of gaming. And "fractal position playing" isn't any funny story - the minute you end, you'll are looking to dive again in and discover a few fascinating sliver of the gigantic heritage you simply built."
—Jason Morningstar, fashion designer of Fiasco

"It's been many years online game captures my recognition like Microscope. pass the hype, it's a very outstanding well-instruction'd game"
—Andy Kitkowski, founding father of

Microscope Homepage

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Download E-books Molly Fyde and the Fight for Peace (Book 4) (Volume 4) PDF

By Hugh Howey

Within the hugely expected end to the Bern Saga, Molly and her buddies are reunited whereas wars erupt and collide. a whole universe hangs at the activities of Parsona's group, and never them all will continue to exist. examining Order: 1. Molly Fyde and the Parsona Rescue 2. Molly Fyde and the Land of sunshine three. Molly Fyde and the Blood of Billions four. Molly Fyde and the struggle for Peace

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Download E-books Curiosity: An Inside Look at the Mars Rover Mission and the People Who Made It Happen PDF

By Rod Pyle

The tale of the folks who designed, outfitted, introduced, landed, and at the moment are working the Mars rover Curiosity

Award-winning technology author Rod Pyle presents a behind-the-scenes check out the hot area project to Mars of Curiosity--the unmanned rover that's now offering researchers with extraordinary information regarding the crimson planet. Pyle follows the staff of committed scientists whose task it really is to discover new vistas on Mars. Readers also will sign up for Curiosity, the main complicated desktop ever despatched to a different planet, on its trip of discovery. Drawing on his contacts at NASA and the Jet Propulsion Laboratory, the writer offers attractive insights into how this enthusiastic group of various members makes use of a progressive onboard laboratory of chemistry, geology, and physics tools to solve the profound secrets and techniques of the crimson Planet.

Readers will meet: Robert Manning, leader engineer for each rover challenge seeing that Pathfinder; John Grotzinger, the manager scientist of the full challenge; Vandi Tompkins, the software program fashion designer who retains the rover on course; Bobak Ferdowsi, famed “Mohawk man” from project keep an eye on; Adam Steltzner, the Elvis-like access, Descent and touchdown Lead; Al Chen, leader of flight dynamics and the voice of JPL in the course of Curiosity’s treacherous touchdown; and plenty of others.

And after all, Pyle describes the adventures of the Curiosity rover itself, from touchdown during the first samples, drilling, and studying a liveable previous in the world, to attaining the last word goal: Mount Sharp, within the middle of Gale Crater.  

America is once more on the vanguard of a brand new house age and Curiosity is simply the start of many fascinating new discoveries to come back.

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Download E-books Dark Side of the Moon: Wernher von Braun, the Third Reich, and the Space Race PDF

By Wayne Biddle

A gorgeous research of the roots of the 1st moon touchdown 40 years ago. This illuminating tale of the sunrise of the distance age reaches again to the reactionary modernism of the 3rd Reich, utilizing the lifetime of "rocket scientist" Wernher von Braun as its narrative course throughout the crumbling of Weimar Germany and the increase of the Nazi regime. Von Braun, a blinkered opportunist who may possibly observe purely tunnel imaginative and prescient to his meteoric profession, stands as an archetype of myriad 20th century technologists who thrived less than regimes of army secrecy and limitless funds. His seamless transformation from developer of the lethal V-2 ballistic missile for Hitler to an American megastar because the meant genius in the back of the golden years of the U.S. house software within the Fifties and Nineteen Sixties increases haunting questions about the tradition of the chilly battle, the shared values of know-how in totalitarian and democratic societies, and the imperatives of fabric progress.

A long island instances publication evaluation "Editor's Choice"

12 illustrations.

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Download E-books Moonshot: The Inside Story of Mankind's Greatest Adventure PDF

By Dan Parry

An exhilarating and revealing account of 1 of the defining moments in human background — the 1969 moon landing.

In 1969, humans around the globe accumulated round tv units to witness one in every of mankind’s such a lot ancient moments — the 1st moon touchdown. Following this epic project from its very starting — a fabricated from the chilly battle and America’s wish to flex its foreign muscle — via to its aftermath, Moonshot is going past legit money owed of the Apollo eleven challenge to inform the genuine, untold tale of an occasion recognized the realm over.

From the fraught and sometimes sour relationships among the 3 males destined to make background — hot-headed Buzz Aldrin, easygoing Michael Collins, and the inscrutable Neil Armstrong — to the instant whilst, simply mins prior to Armstrong and Aldrin have been approximately to arrive the skin of the moon, their gear failed and alarms rang out, Dan Parry finds how the project may so simply have long past extraordinarily improper, and America’s nice triumph became a countrywide disaster.

Based on huge learn and interviews with the various top members, Moonshot describes in nail-biting, page-turning aspect each step of a impressive and dangerous challenge that has captured the mind's eye of generations then and because.

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