Author: Sandy AntunesPublisher: "O'Reilly Media, Inc."
ISBN: 1449310621
Category : Computers
Languages : en
Pages : 91
Book Description
"Project book: living past launch"--Cover.
Surviving Orbit the DIY Way
Author: Sandy AntunesPublisher: Maker Media, Inc.
ISBN: 1449356125
Category : Science
Languages : en
Pages : 102
Book Description
Is your picosatellite ready for launch? Can it withstand rocket thrusts and the vacuum of space? This do-it-yourself guide helps you conduct a series of hands-on tests designed to check your satellite’s readiness. Learn precisely what the craft and its electronic components must endure if they’re to function properly in Low Earth Orbit. The perfect follow-up to DIY Satellite Platforms (our primer for designing and building a picosatellite), this book also provides an overview of what space is like and how orbits work, enabling you to set up the launch and orbit support you’ll need. Go deep into the numbers that describe conditions your satellite will face Learn how to mitigate the risks of radiation in the ionosphere Pick up enough formal systems engineering to understand what the tests are all about Build a thermal vacuum chamber for mimicking environment of space Simulate the rocket launch by building and running a vibration shake test Use a homebuilt centrifuge to conduct high G-force tests Get guidelines on scheduling tests and choosing an appropriate lab or clean room
Author: Sandy AntunesDIY Satellite Platforms
Author: Sandy AntunesPublisher: "O'Reilly Media, Inc."
ISBN: 1449310605
Category : Computers
Languages : en
Pages : 85
Book Description
"Can any hobbyist build a satellite? Our DIY guide steps you through designing and building a base picosatellite platform tough enough to withstand launch and survive in orbit. If you have basic maker skills, you can build a space-ready solar-powered computer-controlled assembly suitable for attaching instruments and rocketing into space." [résumé éditeur].
DIY Instruments for Amateur Space
Author: Sandy AntunesPublisher: "O'Reilly Media, Inc."
ISBN: 1449368735
Category : Science
Languages : en
Pages : 121
Book Description
What can you measure and what are your limits when orbiting in space? Learn about what physical quantities you can measure and what types of sensors you can buy or build. We cover the 5 essential design limits as well: power, bandwidth, resolution, computing... and legal limitations. Explore what you can play with using your own personal satellite.
DIY Comms and Control for Amateur Space
Author: Sandy AntunesPublisher: Maker Media, Inc.
ISBN: 1680450476
Category : Science
Languages : en
Pages : 102
Book Description
Radio spectrum for commanding and recording from our satellites is a shared resource with subtle hurdles. We walk the path originally paved by AMSATs to discuss the steps and licensing needed to set up and operate both a command uplink and a data download station and network. Find out how playing nicely with others maximizes your ability to get your data down.
DIY Instruments for Amateur Space
Author: Sandy AntunesPublisher: "O'Reilly Media, Inc."
ISBN: 1449310648
Category : Computers
Languages : en
Pages : 121
Book Description
La 4e de couverture indique : "Whether your picosatellite is watching the Earth or gazing at the stars, you need to know what you're sensing. This do-it-yourself guide explains what you can measure---and the constraints on those measurements---when you're orbiting the Earth. Learn exactly what physical quantities you can measure, and how to plan your sensor loadout. The perfect follow-up to DIY Satellite Platforms (our primer for designing and building a picosatellite), this book takes you beyond just flying a camera in space and shows you what data you can gather and play with using your own personal satellite. Learn about all the sensors you can select for your mission; get acquainted with key electronic communications protocols; I2C, TTL, SPI, analog, and digital; find out how much more your instruments can "see" when they're above the atmosphere; Understand how to calibrate sensors and how to pick the signal out of the noise; determine the optimal data acquisition rate for your available bandwith; [and] look at off-the-shelf sensor hardware and CPU choices (such as Arduino)"
The Lost Apothecary
Author: Sarah PennerPublisher: Harlequin
ISBN: 1488077495
Category : Fiction
Languages : en
Pages : 341
Book Description
INSTANT NEW YORK TIMES BESTSELLER Named Most Anticipated of 2021 by Newsweek, Good Housekeeping, Hello! magazine, Oprah.com, Bustle, Popsugar, Betches, Sweet July, and GoodReads! March 2021 Indie Next Pick and #1 LibraryReads Pick “A bold, edgy, accomplished debut!” —Kate Quinn, New York Times bestselling author of The Alice Network A forgotten history. A secret network of women. A legacy of poison and revenge. Welcome to The Lost Apothecary… Hidden in the depths of eighteenth-century London, a secret apothecary shop caters to an unusual kind of clientele. Women across the city whisper of a mysterious figure named Nella who sells well-disguised poisons to use against the oppressive men in their lives. But the apothecary’s fate is jeopardized when her newest patron, a precocious twelve-year-old, makes a fatal mistake, sparking a string of consequences that echo through the centuries. Meanwhile in present-day London, aspiring historian Caroline Parcewell spends her tenth wedding anniversary alone, running from her own demons. When she stumbles upon a clue to the unsolved apothecary murders that haunted London two hundred years ago, her life collides with the apothecary’s in a stunning twist of fate—and not everyone will survive. With crackling suspense, unforgettable characters and searing insight, The Lost Apothecary is a subversive and intoxicating debut novel of secrets, vengeance and the remarkable ways women can save each other despite the barrier of time. Don’t miss THE LONDON SÉANCE SOCIETY! Sarah’s next spellbinding book about truth, illusion and the grave risks women will take to avenge the ones they love.
Tcl/Tk in a Nutshell
Author: Paul RainesPublisher: "O'Reilly Media, Inc."
ISBN: 0596555792
Category : Computers
Languages : en
Pages : 458
Book Description
The Tcl language and Tk graphical toolkit are simple and powerful building blocks for custom applications. The Tcl/Tk combination is increasingly popular because it lets you produce sophisticated graphical interfaces with a few easy commands, develop and change scripts quickly, and conveniently tie together existing utilities or programming libraries.One of the attractive features of Tcl/Tk is the wide variety of commands, many offering a wealth of options. Most of the things you'd like to do have been anticipated by the language's creator, John Ousterhout, or one of the developers of Tcl/Tk's many powerful extensions. Thus, you'll find that a command or option probably exists to provide just what you need.And that's why it's valuable to have a quick reference that briefly describes every command and option in the core Tcl/Tk distribution as well as the most popular extensions. Keep this book on your desk as you write scripts, and you'll be able to find almost instantly the particular option you need.Most chapters consist of alphabetical listings. Since Tk and mega-widget packages break down commands by widget, the chapters on these topics are organized by widget along with a section of core commands where appropriate. Contents include: Core Tcl and Tk commands and Tk widgets C interface (prototypes) Expect [incr Tcl] and [incr Tk] Tix TclX BLT Oratcl, SybTcl, and Tclodbc
Extremely Loud & Incredibly Close
Author: Jonathan Safran FoerPublisher: Houghton Mifflin Harcourt
ISBN: 9780618329700
Category : Fiction
Languages : en
Pages : 372
Book Description
Jonathan Safran Foer emerged as one of the most original writers of his generation with his best-selling debut novel, Everything Is Illuminated. Now, with humor, tenderness, and awe, he confronts the traumas of our recent history. What he discovers is solace in that most human quality, imagination. Meet Oskar Schell, an inventor, Francophile, tambourine player, Shakespearean actor, jeweler, pacifist, correspondent with Stephen Hawking and Ringo Starr. He is nine years old. And he is on an urgent, secret search through the five boroughs of New York. His mission is to find the lock that fits a mysterious key belonging to his father, who died in the World Trade Center on 9/11. An inspired innocent, Oskar is alternately endearing, exasperating, and hilarious as he careens from Central Park to Coney Island to Harlem on his search. Along the way he is always dreaming up inventions to keep those he loves safe from harm. What about a birdseed shirt to let you fly away? What if you could actually hear everyone's heartbeat? His goal is hopeful, but the past speaks a loud warning in stories of those who've lost loved ones before. As Oskar roams New York, he encounters a motley assortment of humanity who are all survivors in their own way. He befriends a 103-year-old war reporter, a tour guide who never leaves the Empire State Building, and lovers enraptured or scorned. Ultimately, Oskar ends his journey where it began, at his father's grave. But now he is accompanied by the silent stranger who has been renting the spare room of his grandmother's apartment. They are there to dig up his father's empty coffin.
