Travels in Four Dimensions: The Enigmas of Space and Time

Does time really flow, or is that simply an illusion? Did time have a beginning? What does it mean to say that time has a direction? Does space have boundaries, or is it infinite? Are our space and time unique, or could there be other, parallel worlds with their own space and time? Do space and time really exist, or are they simply the constructions of our minds? Robin Le Poidevin provides a clear, witty, and stimulating introduction to these deep questions, and many other mind-boggling puzzles and paradoxes. 

There is no gravity in space. The North Star never changes its position in the sky. Earth's shadow causes the phases of the moon. You may have heard these common sayings or beliefs before. But are they really true? Can they be proven using science? Let's investigate seventeen statements about space and find out which ones are right, which ones are wrong, and which ones still stump scientists! Find out whether astronauts really landed on the moon! Discover whether it's true that the same side of the Moon is always dark! See if you can tell the difference between fact and fiction with Is That a Fact?

 

Desserts Magazine Issue #3

A collection of vegan desserts recipes, such as Triple Layer Chocolate Cream Cake, Vegan Twinkies, Vegan Doughnuts, Fauxstess Cupcakes, Basic Chocolate Cupcakes, Vegan Fluffy Buttercream Frosting, Homestyle Chocolate Chip Cookies, Chocolate Pumpkin Pie, White Chocolate, and much more.... Save shelf space and paper, download the PDF and view the interactive digital magazine.

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The Making Of History’s Greatest Star Map

From prehistoric times, mankind has looked up at the night sky, and puzzled at the changing positions of the stars. How far away they are is a question that has confounded scientists for centuries. Over the last few hundred years, many scientific careers – and considerable resources – have been devoted 

 

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Carmen Sandiego Word Detective

Your mission is to stop Carmen Sandiego and her diabolical Babble-on Machine from destroying the English language! You must successfully complete twelve missions that require you to solve over sixty skill-building activities. Practice mode features thousands of exercises that develop spelling, grammar and vocabulary proficiency. This adventure motivates kids to learn essential language skills.