Catalog Search Results
Language
English
Description
Monster Math Squad stars MAX, LILY and GOO. While they may not be the biggest, or bravest (or even the brainiest) monsters on the block, the Squad love nothing better than to put their monster minds together and use their math skills to overcome any obstacle they face… even ones with two left feet or ten thumbs. Each story features a job for the Squad, helping a monster with a unique problem.
Pub. Date
2018.
Language
English
Description
Professor Donaldson provides alternatives for dogs who have trouble with sit and down. She then continues with fundamental obedience through recall, or coming when called, using classical - or Pavlovian - conditioning. She'll also review the importance of choosing and using the appropriate verbal cues.
Pub. Date
2017.
Language
English
Description
In visible light, scientists had described galaxies as "island universes." But since the advent of radio astronomy, we've seen galaxies connected by streams of neutral hydrogen, interacting with and ripping the gasses from each other. Now astronomers have learned hat these strong environmental interactions are not a secondary feature - they are key to a galaxy's basic structure and appearance.
Pub. Date
2016.
Language
English
Description
Return to the periodic table, introduced in Lecture 1, to practice predicting properties of elements based on their electronic structure. Then, witness what happens when three different alkali metals react with water. Theory forecasts a pronounced difference in the result. Is there?
Pub. Date
2018.
Language
English
Description
This lesson opens with a brief look at the rendering of three-dimensional forms using light and shadow, known as volume, and why it is easier to achieve than you might think, once you know how to look at the effects of light. Paint geometric objects using your new understanding of light sources, cast shadows versus form shadows, and reflective effects.
Pub. Date
2016.
Language
English
Description
From complicated clients to lusty love interests, from sprightly sidekick to detail-oriented detectives, women have always played a role in mystery and suspense fiction. Professor Schmid introduces you to female detectives in literature through time and examines how even at the earliest stages, the figure of the female detective assumed a wide variety of types to appeal to different audiences.
Pub. Date
2016.
Language
English
Description
Drawing on the bizarre conclusions from the previous lecture, reach even more peculiar results by mapping all of the fractions (i.e., rational numbers) onto the number line, discovering that they take up no space at all! And this is just the start of the weirdness.
Pub. Date
2018.
Language
English
Description
Take a behind-the-scenes tour of the Thomas Jefferson National Accelerator Facility in Newport News, Virginia, where Professor Weinstein and his colleagues use high-energy electron beams to probe the structure of the nucleus. Dr. Weinstein also explains other types of particle accelerators and their purposes, including the Large Hadron Collider in Europe.
Pub. Date
2016.
Language
English
Description
Dig deeper into the nucleus to discover how so little matter can convert into the tremendous energy of a nuclear explosion, as described by Albert Einstein's famous mass-energy equation. Focus on nuclear binding energy and mass defect, both of which are connected to the release of nuclear energy.
Pub. Date
2009.
Language
English
Description
At the beginning of the 20th century, Max Planck and Albert Einstein proposed revolutionary ideas to resolve puzzles about light and matter. You explore Planck's discovery that light energy can only be emitted or absorbed in discrete amounts called quanta, and Einstein's application of this concept to matter.
Pub. Date
2017.
Language
English
Description
Test the limits of small, inexpensive, off-the-shelf hobby motors by building a motor-driven crane capable of lifting 100 pounds - a tall order for a motor that weighs only a few ounces! First, construct the world's simplest electric motor to gain insights about how they work. Then calculate the torque requirements for your crane, and add gears and pulleys to achieve mechanical advantage.
Pub. Date
2016.
Language
English
Description
Put your dots-and-boxes machine to work solving long-division problems, making them easy while shedding light on the rationale behind the confusing long-division algorithm taught in school. Then watch how the machine quickly handles scary-looking division problems in polynomial algebra.
Pub. Date
2014.
Language
English
Description
The Christian conversion of the Roman emperor Constantine was a momentous turning point for the faith. Learn about the relationship of the Roman Empire to early Christianity, and the specific reasons why Christians were persecuted by Rome. Grasp Constantine's motives for converting to Christianity and for becoming directly involved in theological controversies.
Pub. Date
1995.
Language
English
Description
When huge pieces of Fantasia are beginning to disappear, including the Childlike Empress' memories, it's up to Bastian to find out what's going on. Travelling first on Falkor to the Southern Oracle, then with Engywook on the Kitzblits Flying Machine to Yor's Minround Mine of Memories, Bastian learns that the culprit is none other than Xayide.
Pub. Date
2015.
Language
English
Description
The trio is thoroughly wiped out after running around the backyard and Luna treats them each to a little piece of chocolate. They are absolutely amazed to discover that chocolate actually comes from a fruit on a tree! But how can you grow a chocolate tree? They’ve just gotta know! After a yummy chocolatey experiment, it’s time for the absolutely yummiest make believe ever!
Pub. Date
2017.
Language
English
Description
Some additional birding skills are needed for night viewing of birds. Learn about equipment for night birding, ways of locating nocturnal birds, and approaches to viewing migrating birds at night. Then investigate the fascinating range of night birds, encompassing the great diversity of owls, as well as species such as night-herons, nighthawks, and nightjars.
Pub. Date
2016.
Language
English
Description
Once you have perfected the components already reviewed - a detective, a criminal, clues, and potentially a sidekick - all that remains is solving the mystery. But as you’ll learn in this lecture, it’s never that simple. Learn what makes for the perfect “big reveal” and why you don’t necessarily need one. See how open-ended mysteries walk the line between frustrating and compelling.
Pub. Date
2015.
Language
English
Description
Luna and Jupiter just love popcorn... but they’d never thought about what actually makes popcorn pop. How does corn turn into popcorn? What’s happening here? In a particularly festive and fun make-believe, the trio transforms into kernels of popcorn and discover what exactly causes popcorn pop.
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