Twenty years after the arrival of an alien ship over Johannesburg, South Africa,, the creatures have been segregated from humanity and when one human discovers the secret behind their technology he is hunted down inside the alien district.

Use your knowledge of vectors to explore vector-valued functions, which are functions whose values are vectors. The derivative of such a function is a vector tangent to the graph that points in the direction of motion. An important application is describing the motion of a particle.

Is your child struggling in 8th grade physics? Or is he/she too advanced for his age and would like to dive into 8th physics? If you answer yes to any of these questions, then your child needs a copy of this physics book for children. Here, complex discussions are made understandable through simplified textual presentation.

Consolidate your mastery of space by defining vector-valued functions and their derivatives, along with various formulas relating to arc length. Immediately apply these definitions to position, velocity, and acceleration vectors, and differentiate them using a surprisingly simple method that makes vectors one of the most formidable tools in multivariable calculus.

Amy's hammer is missing and she is lost with out it. Vector the detective is on the case. / The guys are stoked to find out their band Dude-itude has booked their first road gig, and they hit the road in their new decked-out van.

Advanced undergraduates and graduate students studying quantum mechanics will find this text a valuable guide to mathematical methods. Emphasizing the unity of a variety of different techniques, it is enduringly relevant to many physical systems outside the domain of quantum theory. Concise in its presentation, this text covers eigenvalue problems in classical physics, orthogonal functions and expansions, the Sturm-Liouville theory and linear operators...

Almost seven months after the Rage virus has annihilated the inhabitants of the London and the British Isles, the U.S. Army declares that the war against infection has been won, and that the reconstruction of the country can begin. In the first wave of returning refugees, a family is reunited, but one of them unwillingly carries a terrible secret. The virus is not yet dead, and this time, it is more dangerous than ever.

Contacted by Dr. Valentine Petrenko, a Russian specialist in rare diseases, about a mysterious cluster of deaths in Moscow, American Dr. Fiona Devin becomes the target of the assassins who kill Petrenko, and Covert-One operative Jon Smith is sent to rescue Devin.