Discover how common winter illnesses like the cold, flu, and gastroenteritis spread and impact us during the colder months. Through expert insights and visual experiments, learn the nature of viruses, transmission methods, and...

This video covers: - How sound waves travel through materials - The idea that sound waves are longitudinal - How wavelength changes with speed - The structure of the human ear and how it works - How the range of human hearing changes...

This video covers:

- The two types of seismic (earthquake) waves: S waves and P w
aves
- How we can detect seismic waves with sei
smometers
- How waves are refracted as they pass th
rough the earth
- How...

Experts in neuroscience help us understand why the human brain is a marvel of structure and function. This program examines the interaction of the spinal cord and nerve endings, as well as fascinating concepts like involuntary and...

When you hear the roar of traffic, the bark of a dog, or your teacher's voice, you are experiencing sound. This program uses colorful animations to explore important characteristics of sound, including intensity, loudness, pitch, and...

Matthew Parris says the internet is neither the saviour of the destroyer of journalism. Free, unfettered access will not fly forever. IQ2 "The Future of News" (7 of 13)

This is a global health video blog providing 10 facts about HIV by Dr Greg Martin

This year the US is facing its worst West Nile Virus outbreak in years. To date, there have been ten deaths reported in Texas and six in Louisiana. This animation shows the transmission cycle of the virus, how it attacks the human...

The video is a lecture presentation on communication, describing how various parts of the electromagnetic spectrum are used in different communication systems. The presentation covers topics including microwaves, satellite communication,...

The WHO says it thinks the virus likely passed from bats to animals at wildlife farms near Wuhan.

A mysterious strain of viral pneumonia has affected 59 people in Wuhan, China since mid-December 2019. <br/>

The video discusses the efforts of scientists in Antwerp to genetically modify the tsetse fly in order to combat the spread of sleeping sickness. By using a bacterium that lives inside the fly, the scientists can create a tiny protein...

The first and a very basic instrument called single beam photometer or colorimeter is explained in the following animated video. The photometer is used to determine the concentration of the unknown sample using the principle of...

Norovirus (Norwalk Virus) Transmission, Pathogenesis, Symptoms, Diagnosis, Treatment and How to Prevent It and/or Reduce Risk of Infection.



Norovirus is a very common cause of gastrointestinal infection, and is highly...

This video is a lecture presentation on physical defenses against pathogens. The presenter discusses the ways in which pathogens can be transmitted from one host to another and how we can limit their spread through measures such as good...

Rabies is on the rise in the US, with several states reporting higher-than-average numbers of cases in wild animals this summer. States in the Great Plains, as well as Texas, New Mexico, Colorado, Arkansas and Maine, have all seen a rise...

The video is a lecture presentation on sexually transmitted infections (STIs). The speaker defines what STIs are, including common examples like gonorrhea, syphilis, and HIV. The speaker explains how HIV is spread from person to person...

Ringworm (Tinea Corporis) is a fungal skin infection cause by fungi known as dermatophytes. In this lesson, we discuss these dermatophytes, along with risk factors for infection, signs and symptoms, a variation of clinical presentations...

How to use the bmon command: 2-Minute Linux Tips

This video focuses on encapsulation and decapsulation.
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This clip is from the chapter "Bits and Bytes" of the series "World of Computer Networking: Your CCNA start".This section provides an introduction to bits and bytes in...

Recent news stories about a functional cure for HIV-AIDS, possible vaccinations and an AIDS-free future within our reach have made headlines all over the world. The hopeful message directed to persons with HIV-AIDS is that the disease is...

The video discusses the different ways in which waves behave when they encounter a boundary between two materials. The behavior can either be reflection, absorption, or transmission or a combination of the three. The video also explains...

In this video, I discuss the mechanism of propagation and development of Variant Creutzfeldt-Jakob Disease (vCJD), the human form of Mad Cow Disease (bovine spongiform encephalopathy) which is conferred from infected cows.<br/>

Now we know about a wide variety of bacteria, as well as precisely how they can harm us. So how do they get spread around? How do communicable diseases get from host to host? Let's learn all about this process now.