Brace yourself for a fun challenge: build a photorealistic 3D renderer from scratch! In just a couple of weeks, build a ray tracer that renders beautiful scenes with shadows, reflections, refraction effects, and subjects composed of various graphics primitives: spheres, cubes, cylinders, triangles, and more. With each chapter, implement another piece of the puzzle and move the renderer forward. Use whichever language and environment you prefer, and do it entirely test-first, so you know it's correct.

The tracer method was first introduced to measure the actual flow of fluid in a vessel, and then to develop a suitable model to represent this flow. Such models are used to follow the flow of fluid in chemical reactors and other process units, in rivers and streams, and through soils and porous structures. Also, in medicine they are used to study the flow of chemicals, harmful or not, in the blood streams of animals and man. Tracer Technology, written by Octave Levenspiel, shows how we use tracers to follow the flow of fluids and then we develop a variety of models to represent these flows. This activity is called tracer technology.

Imagine The Bourne Identity meets Gravity and you'll get TRACER, the most exciting thriller set in space you'll ever read. A huge space station orbits the Earth, holding the last of humanity. It's broken, rusted, falling apart. We've wrecked our planet, and now we have to live with the consequences: a new home that's dirty, overcrowded and inescapable. What's more, there's a madman hiding on the station. He's about to unleash chaos. And when he does, there'll be nowhere left to run. In space, every second counts. Who said nobody could hear you scream? 'Fast, exhilarating and unforgettable, and once you start it you can't stop' Sarah Lotz, author of The Three 'A stunning debut that never lets up, from the nerve-jangling beginning to the explosive end' James Douglas, author of The Doomsday Machine 'TRACER sets a new standard for all-action SF' Ken MacLeod

Overwatch may be disbanded, but Tracer's time in "retirement" is up . . . After a punk-rock omnic named Iggy shows Tracer the dire living conditions forced upon London's omnics, Tracer vows to help. But things might not be so easy, especially with larger forces sowing conflict between humans and omnics in London. Acclaimed Eisner and Harvey award-winning writer Mariko Tamaki (This One Summer, Wonder Woman) and kinetic artist Babs Tarr (Batgirl, Motor Crush) are joined by exquisite colorist Rachael Cohen (Snotgirl) and letterer extraordinaire Deron Bennett (Tale of Sand). Working in close collaboration, Blizzard Entertainment and Dark Horse Comics present Overwatch fans with an exciting new addition to Overwatch's unique universe! Collects Overwatch: Tracer--London Calling #1-#5.

Jonah and Chip have barely adjusted to the discovery that they are actually the missing children of history when a time purist named JB sends them, along with Katherine and Alex, hurtling back in time to 1483. JB promises that if they can fix history, they can all return to their present-day lives. Now Chip and Alex have to reclaim their true identities—as the king and prince of England. But things get complicated when the four discover that according to the records, the princes were murdered. How can they fix history if it means that Chip and Alex will die? Margaret Peterson Haddix is the author of Found, the bestselling Shadow Children series, Uprising, Running Out of Time, and many more

The world’s fresh water supplies are dwindling rapidly—even wastewater is now considered an asset. By 2025, most of the world's population will be facing serious water stresses and shortages. Aquananotechnology: Global Prospects breaks new ground with its informative and innovative introduction of the application of nanotechnology to the remediation of contaminated water for drinking and industrial use. It provides a comprehensive overview, from a global perspective, of the latest research and developments in the use of nanotechnology for water purification and desalination methods. The book also covers approaches to remediation such as high surface area nanoscale media for adsorption of toxic species, UV treatment of pathogens, and regeneration of saturated media with applications in municipal water supplies, produced water from fracking, ballast water, and more. It also discusses membranes, desalination, sensing, engineered polymers, magnetic nanomaterials, electrospun nanofibers, photocatalysis, endocrine disruptors, and Al13 clusters. It explores physics-based phenomena such as subcritical water and cavitation-induced sonoluminescence, and fog harvesting. With contributions from experts in developed and developing countries, including those with severe contamination, such as China, India, and Pakistan, the book’s content spans a wide range of the subject areas that fall under the aquananotechnology banner, either squarely or tangentially. The book strongly emphasizes sorption media, with broad application to a myriad of contaminants—both geogenic and anthropogenic—keeping in mind that it is not enough for water to be potable, it must also be palatable.

From the award-winning author of Sandworm comes the propulsive story of a new breed of investigators who have cracked the Bitcoin blockchain, exposing once-anonymous realms of money, drugs, and violence. “I love the book… It reads like a thriller… These stories are amazing.” (Michael Lewis) Over the last decade, a single innovation has massively fueled digital black markets: cryptocurrency. Crime lords inhabiting lawless corners of the internet have operated more freely—whether in drug dealing, money laundering, or human trafficking—than their analog counterparts could have ever dreamed of. By transacting not in dollars or pounds but in currencies with anonymous ledgers, overseen by no government, beholden to no bankers, these black marketeers have sought to rob law enforcement of their chief method of cracking down on illicit finance: following the money. But what if the centerpiece of this dark economy held a secret, fatal flaw? What if their currency wasn’t so cryptic after all? An investigator using the right mixture of technical wizardry, financial forensics, and old-fashioned persistence could uncover an entire world of wrongdoing. Tracers in the Dark is a story of crime and pursuit unlike any other. With unprecedented access to the major players in federal law enforcement and private industry, veteran cybersecurity reporter Andy Greenberg tells an astonishing saga of criminal empires built and destroyed. He introduces an IRS agent with a defiant streak, a Bitcoin-tracing Danish entrepreneur, and a colorful ensemble of hardboiled agents and prosecutors as they delve deep into the crypto-underworld. The result is a thrilling, globe-spanning story of dirty cops, drug bazaars, trafficking rings, and the biggest takedown of an online narcotics market in the history of the Internet. Utterly of our time, Tracers in the Dark is a cat-and-mouse story and a tale of a technological one-upmanship. Filled with canny maneuvering and shocking twists, it answers a provocative question: How would some of the world’s most brazen criminals behave if they were sure they could never get caught?