Learn about the life and legacy of Harriet Tubman, the woman who led over 300 enslaved people to freedom through the Underground Railroad. Discover her bravery during the Civil War and her dedication to justice and...

Explore the intricate systems that ensure the punctuality and safety of millions of daily train and plane passengers in France. This video takes you behind the scenes at major transportation hubs to uncover how cutting-edge technology...

Dr. Forrester explains the production of electricity and materials used to insulate and conduct it.

Discover the paradox of orchestra conductors and the history of their role

Today Henry meets a friendly Violin in the foyer of a concert hall. All the instruments are excited for the big show but the conductor is nowhere to be found. Henry becomes a conductor and helps them put on a big orchestral performance!

Dr. Forrester defines electromagnetism and magnet by identifying the relationship between electricity and magnets and how they come from the same force.

Dr. Forrester reads a circuit diagram by recognizing such components as the wire, battery, open switch, closed switch, resistor, and wall outlet. She discusses what electricity can produce in circuits by naming such energies as light,...

Dr. Forrester defines the terms conductor, resistor, and insulators by relating them to electrical charges. She also performs an experiment and labels objects as conductors or insulators.

Dr. Forrester defines the terms current, electricity, and static electricity by recognizing that electricity is a physical science that is important in daily life. She also compares and contrasts the properties of current electricity and...

¿Qué es la luz? ¿Cuáles son algunas de las formas en que utilizamos la luz? Este programa ayuda a los estudiantes a desarrollar una comprensión básica de estas difíciles preguntas. Se destacan las características fundamentales de la...

In this video we learn how three phase electricity works from the basics. We explain how three phase electricity is generated, how the voltages vary, how to calculate the voltages and vrms, what frequency, hertz and cycle mean and how...

Thermistors. Learn the basics of how thermistors work in this video on thermistor basics temperature sensor.

Learn 3 of the 4 things you need to remember about conductors in electrostatic equilibrium, including that the electric field inside is zero, excess charges are located on the surface, and the electric field just outside the surface is...

Learn about conductors in electrostatic equilibrium! Today, we'll go over the last of the four key points to remember. See how the local surface charge density is at its maximum where the radius of curvature is at its minimum. Learn how...

Follow the conductor as she searches for the members of her Alphabet Band. Learn the letter sound and name and explore words that begin with the letter I.

Follow the conductor as she searches for the members of her Alphabet Band. Learn the letter sound and name and explore words that begin with the letter T.

Follow the conductor as she searches for the members of her Alphabet Band. Learn the letter sound and name and explore words that begin with the letter F.

Follow the conductor as she searches for the members of her Alphabet Band. Learn the letter sound and name and explore words that begin with the letter G.

Follow the conductor as she searches for the members of her Alphabet Band. Learn the letter sound and name and explore words that begin with the letter H.

Follow the conductor as she searches for the members of her Alphabet Band. Learn the letter sound and name and explore words that begin with the letter K.

Follow the conductor as she searches for the members of her Alphabet Band. Learn the letter sound and name and explore words that begin with the letter L.

Follow the conductor as she searches for the members of her Alphabet Band. Learn the letter sound and name and explore words that begin with the letter R.

Follow the conductor as she searches for the members of her Alphabet Band. Learn the letter sound and name and explore words that begin with the letter V.

Follow the conductor as she searches for the members of her Alphabet Band. Learn the letter sound and name and explore words that begin with the letter X.