Validity is the hallmark of quality for educational and psychological measurement. But what does quality mean in this context? And to what, exactly, does the concept of validity apply? These apparently innocuous questions parachute the unwary inquirer into a minefield of tricky ideas. This book guid[...]
From one of the best writers on science, a remarkable portrait of Isaac Newton. The man who changed our understanding of the universe, of science, and of faith.[...]
One of a series of five activity books that provide really useful practice of basic Maths skills. The books should be ideal for use at home for extra practice and reinforcement of topics covered at school as well as for SATS preparation.[...]
One of a series of five activity books that provide really useful practice of basic Maths skills. The books should be ideal for use at home for extra practice and reinforcement of topics covered at school as well as for SATS preparation.[...]
One of a series of five activity books that provide really useful practice of basic Maths skills. The books should be ideal for use at home for extra practice and reinforcement of topics covered at school as well as for SATS preparation.[...]
One of a series of five activity books that provide really useful practice of basic Maths skills. The books should be ideal for use at home for extra practice and reinforcement of topics covered at school as well as for SATS preparation.[...]
One of a series of five activity books that provide really useful practice of basic English skills. The books should be ideal for use at home for extra practice and reinforcement of topics covered at school as well as for SATS preparation.[...]
One of a series of five activity books that provide really useful practice of basic English skills. The books should be ideal for use at home for extra practice and reinforcement of topics covered at school as well as for SATS preparation.[...]
One of a series of five activity books that provide really useful practice of basic English skills. The books should be ideal for use at home for extra practice and reinforcement of topics covered at school as well as for SATS preparation.[...]
One of a series of five activity books that provide really useful practice of basic English skills. The books should be ideal for use at home for extra practice and reinforcement of topics covered at school as well as for SATS preparation.[...]
One of a series of five activity books that provide really useful practice of basic Maths skills. The books should be ideal for use at home for extra practice and reinforcement of topics covered at school as well as for SATS preparation.[...]
A breathtaking thriller which weaves history and religion with action, adventure and apocalypse...Luke Hayward is adrift. Blacklisted out of academia, he is in no position to refuse when a client asks for his expert help in recovering some lost Isaac Newton papers. But a chance discovery in a dusty [...]
A breathtaking thriller which weaves history and religion with action, adventure and apocalypse...
Earlier naturalists formed the impression that bird numbers remained more or less stable through time. In the years since these words were written, however, changes have occurred in the landscapes of the British Isles and in the seas around our coasts, causing bird populations to fluctuate in an unp[...]
What if Isaac Newton had never lived? Robert Hooke and Edmond Halley, whose place in history has been overshadowed by the giant figure of Newton, were pioneering scientists within their own right, and instrumental in establishing the Royal Society. Whilst Newton is widely regarded as one of[...]
The Clockwork Universe is the story of a band of menwho lived in a world of dirt and disease but pictured auniverse that ran like a perfect machine. A meld ofhistory and science, this book is a group portrait ofsome of the greatest minds who ever lived as theywrestled with nature's most sweeping mys[...]
In a world of chaos and disease, one group of driven, idiosyncratic geniuses envisioned a universe that ran like clockwork. They were the Royal Society, the men who made the modern world. At the end of the seventeenth century, sickness was divine punishment, astronomy and astrology were indistinguis[...]
Develop the mechantronic side of your genious with 25 funtastic projects! If you're fascinated by electronics and mechanics, this hands-on tour of the junction where they meet will bring you hours of fun and learning. Noted electronics author Newton Braga's "Mechatronics for the Evil Genius" guides [...]
Isaac Newton (1642-1727), the English genius, made his greatest contributions to original thought before the age of twenty-five, while at home in Lincolnshire escaping the great plague of 1665, a period of which he wrote: 'I was in the prime of age for invention'. This book demonstrates his percepti[...]