This program covers the important topic of refrigerators in Physics. We begin by discussing how refrigerators are just “heat engines” operated in reverse because they require energy to pump heat away from an object. The entire lesson is taught by working example problems beginning with the easier ones and gradually progressing to the harder problems. Emphasis is placed on giving students confidence in their skills by gradual repetition so that...

Updated for 2020, Emergent readers learn about solids and liquids.

Updated for 2020, Emergent readers explore various scientific tools such as a microscope, magnifying glass, and ruler.

Humanity has reached a critical moment. Our world is unsettled and rapidly changing, and we face existential risks over the next century. Various outcomes--good and bad--are possible. Yet our approach to the future is characterized by short-term thinking, polarizing debates, alarmist rhetoric, and pessimism. In this short, exhilarating book, renowned scientist and bestselling author Martin Rees argues that humanity's prospects depend on our taking...

A Selection of the Scientific American Book Club Profiling 50 of the world's most popular playthings including their history, trivia, and the technology involved this guide uncovers the hidden science of toys. Discover how an Etch A Sketch writes on its gray screen, why a boomerang returns after it is thrown, and how an RC car responds to a remote control device. Leaving no detail unrevealed, the guide includes original patent-application blueprints...

"One of the internet's most celebrated hi-tech culture mavens returns with this second collection of essays and polemics. Discussing complex topics in an accessible manner, Cory Doctorow shares visions of a future where artists control their own destinies and where freedom of expression is tempered with the view that creators need to benefit from their own creations. From extolling the Etsy marketverse to excoriating Apple for dumbing-down technology...

Quantum mechanics gives us a picture of the world so radically counterintuitive that it has changed our perspective on reality itself. In Quantum Mechanics: The Physics of the Microscopic World, award-winning Professor Benjamin Schumacher gives you the logical tools to grasp the paradoxes and astonishing insights of this field.

"A revelatory take on where technology is taking us, from one of the worlds most-followed tech writers. We are entering the Exponential Age. Between faster computers, better software and bigger data, ours is the first era in human history in which technology is constantly accelerating. Azeem Azhar--writer, technologist, and creator of the acclaimed Exponential View newsletter--understands this shift better than anyone. Technology, he argues, is developing...