At the University of Sydney, physicist Derek Muller explores the possibility of an anti-gravity wheel through a series of field tests.

Have you ever wondered why English seems to have roots in so many different languages? Here is a look at what words the Anglo-Saxons and Vikings brought to the English language.

The British Empire spread across the world starting in the late sixteenth century, bringing back many new words and phrases that were introduced into the English language.

Julia hast just completed her studies in marketing and is in search of her first real job. In this clip, she contacts a company that's in need of a marketing professional. Watch and see how she handles her initial phone call to human resources and sets up a job interview.

Hoping to land her first real job, Julia interviews for a position in marketing. In this clip, she makes her best case for why she's an excellent candidate for the position. See and judge for yourself how she does. Note in particular, her response to a 'low-ball' starting salary, despite her outstanding qualifications.

Back at home, Julia is wondering if her job interview will ultimately prove to have been a success. Impatiently she is waiting for an answer when suddenly the phone starts to ring...

Julia has landed the job in the marketing department and today's her first day at work. Jonathan welcomes her on board and helps her get oriented to her new workplace.

Julia has now been promoted to lead a new markets campaign team, but with promotion comes new responsibilities. Unfortunately, one of her team members has made a mistake which could cost the company a lot of money. Being both firm and sympathetic has been proven to be an effective management style: watch and learn from Julia!

This Schoolhouse Rock video is about interjections, which are used to express emotions. Fun fact: the singer of this song, Essra, also sang on Sesame Street and wrote a number of pop hits by artists such as Cyndi Lauper and Tina Turner.

Paul, who has an Australian accent, shares what he's noticed about the differences between the English spoken in England and in the USA.

In this video lesson, Luana has advice for avoiding arguments and fights, how to resolve them calmly and peacefully, and if necessary, express our apologies.

The cover letter is an essential document when submitting a job application. Here you can learn about what function a cover letter should serve.

Nicole Williams discusses how a little extra effort can pay off when you go to a job interview.

Learn about conjugating verbs in several different tenses and forms in this playful clip. See how many you can identify. Enjoy!

In this clip, Jessica and Liz show us how to respond to the two similar but, nevertheless, distinctly different questions of "How many?" and "How much?" Enjoy!