In something like water, particles like electrons can beat light in a race - and cause a blue glow to prove it.

We learn a lot about our surroundings thanks to sound. But... what is it exactly? Sound, that is. What is sound? And how does it travel? And what is this Doppler Effect that we've heard so much about? In this episode of Crash Course...

Dialing one number—10111—connects you to a central emergency-services control room operated by the state. Unfortunately, as with many state services in South Africa, this one tends to be understaffed and underequipped. It often takes a...

In Japan, there are two emergency numbers everyone should know: 110, to contact the police, and 119, to report a fire or request an ambulance. But be mindful that you’ll have to talk in Japanese, which is especially difficult when you’re...

The goal of the GCF Reading Program is to help adults at all levels become more proficient readers.



Utilizing various learning tools, learners will be able to learn and practice reading the top 1,000 most frequently used...

Howcast - Check out part 6 of this L.A. Noire walkthrough and beat "Buyer Beware" with this online demo.

Howcast - Check out part 8 of this L.A. Noire walkthrough and beat the street crime side missions.

Howcast - Check out part 29 of this L.A. Noire walkthrough and beat the street crime side missions.

Howcast - Check out part 32 of this L.A. Noire walkthrough and beat the street crime side missions.

Howcast - Check out part 27 of this L.A. Noire walkthrough and beat the street crime side missions.

Howcast - Check out part 19 of this L.A. Noire walkthrough and beat the street crime side missions.

Howcast - Check out part 20 of this L.A. Noire walkthrough and beat the street crime side missions.

Howcast - Check out part 17 of this L.A. Noire walkthrough and beat the street crime side missions.

Howcast - Check out part 14 of this L.A. Noire walkthrough and beat the street crime side missions.

Howcast - Check out part 6 of this L.A. Noire walkthrough and beat the street crime side missions.

Kroha is a 46-year-old paramedic who has been working on the frontline in Donbas, one of the most fiercely fought over parts of Ukraine since Russia’s attempts to invade the country. Bel Trew follows Kroha for the day, witnessing the...

Dr. McWheelie gets sick! Let's learn about health and medicine with the two doctors who help her!

Puppy and Kitten go to the playground by taxi. Kitten is playing with the window—up and down. That could be dangerous! Oh no, a stone flew into the taxi through the open window and hit Kitten's head! Now there's a big bump on Kitten's...

Racing cars want to build a snow castle. Helper Cars—excavator, loader, and crane—arrive to help. Let's build it together!

An orange falls on the puppy’s head, giving him a bump. The ambulance helps, and the puppy is ready to play. Meanwhile, a loader, excavator, and tractor collect the fallen oranges.

Helper Cars are building a new playground when the kitten hurts its paw. The puppy calls an ambulance to take the kitten to the hospital.

Helper Cars will build a new slide!

Two ambulances—red and blue—are ready for emergencies. The red ambulance heads to a puppy with a cough, while the blue one goes to a kitten with an itchy ear. Both ambulances carry first aid kits with medicine.

Welcome to the Helper Cars' Race! Our participants are: a fire truck, a police car, an ambulance, and a sweeper. Which one will be the fastest? What do you think? Cars and trucks, are you ready? Ready, steady, GO!