Resultados narrador por "David Armstrong" en Todas las categorias

Germ Busters are on patrol! See the Germ Busters fighting bad germs in your blood marking them for destruction. The Busters are a team of antibodies that come from medicine you get from a shot. They are weak germs that can’t make you sick. Germ Busters keep protecting you from germs if they get inside your body again. Will you join the Germ Busters to fight the germs?

Do you know how the anatomy of the eye allows us to see colors? Learn about the part of the eye called cones. Cones are like sensors that detect colors. The more cones a person or animal has, the more colors the eye perceives. Can you guess if your pets see you in full color, or if you see your pets in full colors?

Do you know how the buildings in your city got there? Before buildings are built, different types of machines that move the ground are used! Some are large like the excavator or digger that moves old ground and dirt away, preparing the space for a new building! A bulldozer clears away old stones and dirt. The scoop, called the loader, does many jobs–it smooths, scrapes or carries dirt away?

Jamil is sick, which means he can’t play with his friends! Instead of playing, he needs to get his rest. Jamil doesn’t understand why a cold makes him feel so bad. He has a stuffy nose, he can’t taste or smell anything, and he can’t stop sneezing! With the help of his parents, Jamil learns how a cold affects his body and what he has to do to feel better.

Have you ever wondered about all the shapes it takes to design and build structures like buildings or bridges? Different shapes like squares, triangle and rectangles are used in construction, but which shape forms the strongest? Follow the activity using straws and string to find out which shape is the strongest, sturdiest construction?

Do you know how buildings you see in your city got there? Before buildings are built, machines that move the ground are used! The excavator or digger move old ground away, preparing the space for a new building! A driver sits in the cab where all the fun begins! The tools to control the machine are inside the cab. Levers control the arms which do all the digging. How does the digger’s body move?

If you plan to visit one of the coldest, windiest places in the world, you’ll need to be prepared! Antarctica's roads are covered with packed snow and ice, requiring special vehicles and snowmobiles to drive on this slippery land. A bus named ‘Ivan the Terra’ carries 56 people and has tires big enough to keep the ground from sinking! Learn about other vehicles that transport cargo and people.

Have you ever wanted to live in Antarctica? What kind of house would you live in? A snow house, of course! Follow the instructions to learn how to build a snow house. What is a snow house made from and what tools do you need to build it? Guess what the first step is to build a snow house?

Birds are easier to hear than they are to see. If you want to encourage more birds to visit your backyard–learn how to build a bird feeder and a bird's nest! What types of birds will you find? Learn two simple ways to help birds live and to observe them in your own backyard!

What makes fish great swimmers–and how do they breathe underwater? Different animals use their body in different ways to take in air, food, and water. Learn how fish use gills to take in oxygen from water, much like humans use lungs to breathe in oxygen from the air. Whales, dolphins and sea turtles come up for breath–are they fish? In ocean life, guess which fish have gills and which are not fish!

Do you know where your clothes come from? Learn about the processes of making certain materials that are used in clothing! Guess what plant or animal that rubber boots come from? What material is made from plastic bottles? You’ll be surprised to learn how the clothes you wear everyday are manufactured!

Got a pair of old tights, an empty can or a plastic bottle that you plan to throw away? You can upcycle those old things and turn them into new items you can use! Upcycling is recycling in a better way! Learn how to make a decorative pencil holder, a draft dodger to keep the cold out, or turn plastic bottles into bowling pins. What things can you create to reduce the use of plastic and metal?

Did you know that sound vibrations make music? Learn how different musical instruments like guitar, drum, xylophone, and trumpet, make sound vibrations from the movement of strings or air—that together make music! Follow the activity to make your own instrument from straws! Experiment with short and long straws to discover which makes a high or low sound.

The Great Courses has produced thousands of lectures that have introduced millions of lifelong learners to some of the biggest and most fascinating ideas that humans have ever thought. Now, enjoy 36 lectures specially curated from some of our most popular courses and get an interesting learning experience across a wide range of disciplines.

As Calth burns, the Battle Titans of the Fire Masters legion take to the streets of the city of Ithraca, ready to massacre the fleeing civilian population in the name of their new, dark masters. But the remaining loyalist engines of the Legio Praesagius - the True Messengers - still stand ready to defend the Imperium, even in the face of almost certain death. With the nearby Ultramarines forces scattered and lost, the people of Ithraca must fend for themselves as gigantic war machines unleash apocalyptic weaponry across the ravaged skyline....

In The Case of the Diogenes Manuscript, we journey back to the early days of Sherlock Holmes, when the world’s greatest detective was still honing his razor-sharp mind. Set in the bustling streets of 1870s London, this gripping tale reveals one of Sherlock’s first significant cases—a mysterious manuscript theft that plunges him into a web of danger, betrayal, and intellectual challenge.

A fugitive stalks the shadows of the Petitioner's City. Though his fellow Outcast Dead are no more, the lone wolf Severian still intends to escape from Terra by any means possible - but the enigmatic hunter Yasu Nagasena is in pursuit. As news of the massacre on Isstvan V continues to spread and Severian's trail doubles back to the place where it all began, both he and Nagasena must face some uncomfortable truths - and an even more uncertain future.

Hounded by the Sons of Horus, legendary Blackshield Endryd Haar battles enemies from within and without his ranks. Betrayed by his second in command, Erud Vahn, Haar finds himself imprisoned and facing a slow death. Determined to escape and stay one step ahead of the traitors, Endryd must enact his riskiest gamble yet if he is to fulfil his oath to kill the Warmaster Horus.

The judgment of an untested president is all that stands between us and WWIII. As Soviet nuclear missiles move ever closer to Cuba, President John F. Kennedy must chart a course between conflicting counsel and unparalleled emotional stakes to prevent nuclear annihilation. The newly minted US president is put to the ultimate test in this riveting original commission from playwright David Rambo (Empire, CSI).

Two reptile detectives, Sergeant Salamander and Officer Iguana, are on the case! Enjoy this trilogy of humorous mystery stories: "The Case of the Missing Birthday Lasagna", "The Case of the Disappearing Diamond", and "The Case of the Stolen Moped".