الصفحة 1
الصفحة 1
How to photograph the moon and planets with your Digital camera
Using just a regular digital camera along with an amateur astronomical telescope, anyone can produce spectacular photographs of the Moon, as well as surprisingly good images of major planets.Purpose-made astronomical CCD cameras are still very expensive, but technology has now progressed so that digital cameras – the kind you use for everyday photos – are more than capable of being used for astronomy. Tony Buick has written this illustrated step-by-step manual for anyone who has a telescope (of any size) and a digital camera. Look inside at the beautiful color images he has produced – you could do the same.
Codes : An Introduction to Information Communication and Cryptography
Information is an important feature of the modern world. Mathematical techniques underlie the devices that we use to handle it, for example, mobile phones, digital cameras, and personal computers. This book is an integrated introduction to the mathematics of coding, that is, replacing information expressed in symbols, such as a natural language or a sequence of bits, by another message using (possibly) different symbols. There are three main reasons for doing this: economy, reliability, and security, and each is covered in detail. Only a modest mathematical background is assumed, the mathematical theory being introduced at a level that enables the basic problems to be stated carefully, but without unnecessary abstraction.
Aesthetics in digital photography
Aesthetics in Digital Photography presents theories developed over the last 25 centuries by philosophers and art critics, who have sometimes been governed by the objectivity of perception, and other times, of course, by the subjectivity of human judgement. It explores the advances that have been made in neuro-aesthetics and their current limitations.
