Today I’ll talk about why you may not understand the IELTS Listening Test.

This video explains how speakers convert electrical signals into sound waves through the movement of a coil and diaphragm. It also mentions various types of speakers, from large ones used in theaters to smaller ones found in everyday...

Headphones work by converting electrical signals into sound waves through the use of an electromagnet and a cone. The diaphragm cone inside the driver assembly vibrates when triggered by an alternating current, creating sound waves that...

Every week on the IELTS exam, Arabic speakers are making the same grammar mistakes!



Of course, Arabic and English are very different languages! Learning any language is difficult, but for many students the...

We asked John Rickford, Professor of Linguistics and the Humanities at Stanford University, what effect does your spoken dialect have in court?

In this video, the speaker conducts a tone quiz to test the viewer's hearing ability. They explain that as people age, they may experience age-related hearing loss, which is a normal and gradual process. The video emphasizes the...

South by Southwest started as a weekend music festival, but it has grown to become a 10-day event. Learn about it has evolved into a multi-faceted event featuring conferences, panels, workshops, film screenings, and performances by both...

Ranger Karen Amstutz introduces the Parsons Lodge and Jay Leeming.

Join Physics Girl and PBS Digital Studios' new show SoundField as they experiment with giant $100,000 speakers and aim them at your body parts looking for resonance, at oobleck, at googly eyes, and at candles to explore the physics of...

Sound devices and cameras are second only to keyboards and mice in terms of importance as peripherals. Again, make sure you know how to get these devices installed and working properly. This clip is from the chapter "Essential...

Dr. Ben-Porath received her doctorate in political philosophy from Tel Aviv University in 2000. She was awarded two successive Tel Aviv University President’s postdoctoral grants. In 2001-2004, she was a postdoctoral research associate...

The Doppler Effect is demonstrated. Animations are used to show the observed change in wavelength and frequency.

From the section: Essential Peripherals. In this section, we learn more about optical media, USB standard, configure USB’s for keyboard and mIce. Sound devices and cameras are second only to keyboards and mice in terms of importance as...

This video serves as English listening comprehension practice for beginner students. In this video, a native English speaker talks slowly and clearly about the topic of the English language. The subtitles are included at the bottom of...

Communication Professor's Reaction to Simon Sinek's Speech.

Effective Communication Skills. In Part 6 (of 7), we'll look at how to avoid filler words like um, uh, and, you know. Those fillers not only make you sound long-winded but cut into that confident sound we all want when we speak.

Hey econ students. This video covers Micro Topic 2.9 and shows trade, tariffs, and quotas using supply and demand. Be sure to be able to draw and calculate consumer surplus, producer surplus, and deadweight loss. Remember that the...

How to improve your public speaking skills in 5 ways.

There are more than 7,000 languages. Every fortnight one of these will disappear forever. The Economist's language expert Lane Greene explains why.

Overview of interference using the example of sound waves.

In this video lesson, the teacher explains the meaning of the idiom "to feel like a fish out of water" using context clues. The teacher emphasizes the importance of understanding idioms as phrases that don't mean exactly what the words...

In this video, the teacher explains the meaning of the idiom "to get one's foot in the door" using context clues. The teacher emphasizes that idioms cannot be understood by looking at the meaning of individual words, but rather by...

In this video, the teacher explains the meaning of the idiom "to swallow hook, line, and sinker" by using context clues. The teacher emphasizes that idioms cannot be understood by looking at the individual words, but rather require...

If you're a native Spanish or Portuguese speaker, there's a good chance you start 's-cluster' words with a vowel instead of the S sound.