Be Smart
How the Toilet Changed History
It may sometimes seem like things are getting worse, but there's lots of reasons to be optimistic about the future. More people have access to toilets and sanitation than ever before. Thanks to public health improvements like this, since...
TED-Ed
TED-Ed: How a few scientists transformed the way we think about disease - Tien Nguyen
This video was created with support from the U.S. Office of Research Integrity: http://ori.hhs.gov. For several centuries, people though diseases were caused by wandering clouds of poisonous vapor. We now know that this theory is pretty...
Curated Video
Centrifugal Pump Basics - How centrifugal pumps work working principle hvacr
Centrifugal Pumps - In this video we learn the basics of how centrifugal pumps work, the main parts of centrifugal pumps, how the electrical motor powers the pump impeller and how the impeller moves water in the HVAC system.
Curated Video
Circulating pump: What is it & why is it important?
In this video, we're going to talk about the circulating pump, why it's important and what circulating pumps are used for.
Programming Electronics Academy
Series Circuits: Base Electronics: 10
A description of basic series circuit analysis with Arduino.
60 Second Histories
Mode of Communication of Cholera – part 2
John Snow continues with a further extract of his essay on the Mode of Communication of Cholera 1854.
60 Second Histories
Dr John Snow - proving a theory
In part 2 of this series, John Snow talks about proving his theory on how cholera is spread.
60 Second Histories
Dr John Snow - gathering evidence
Part 3 of this series sees John Snow explaining how he proved his theory about the spread of Cholera.
SWPictures
BEING INDIAN - Sanju's Story
Seven year old Sanju Benia literally lives on the wrong side of the tracks. A railway line cuts straight through her remote tribal village. Her only option is to cross the track – and watch out for the trains that thunder past. Sanju is...
60 Second Histories
Dr John Snow & Rev. Henry Whitehead
In part 7 of this series John Snow talks about his collaboration with the Reverend Henry Whitehead.
60 Second Histories
Dr John Snow - unravelling a mystery
Part 5 of this series sees John Snow's continuing investigation into the cause of Cholera.
Programming Electronics Academy
Circuit Analogy: Base Electronics: 2
Using the water pump analogy to explain electricity.
60 Second Histories
Dr John Snow - removing the pump handle
In part 6 of this series, John Snow describes how he presented his findings to authorities and persuaded them to remove the handle from the water pump in Broad Street.
60 Second Histories
Dr John Snow - the investigation continues
In part 4 of this series John Snow describes how he investigated the cause of the outbreak of cholera.
Curated Video
How Centrifugal Pumps Work
This video explains how centrifugal pumps work. Centrifugal pumps are used to transfer fluids and other materials in a wide variety of applications. This video is a helpful primer on the hows and whys of centrifugal pumps, and is useful...
Curated Video
pump impeller basics
In this video, we're going to discuss the basics of pump impellers. You'll learn what they are, what they do, and how they work.
60 Second Histories
Dr John Snow - introduction
In the first of this series Dr John Snow introduces himself and discusses his thoughts on cholera.
60 Second Histories
Mode of Communication of Cholera - part 1
John Snow recites an extract of his essay on the Mode of Communication of Cholera 1854
60 Second Histories
Disease and epidemic
A Victorian woman describes the way Dr John Snow removed the handle from the water pump to prove cholera was spread by contaminated water
Programming Electronics Academy
Prototyping Trade Offs: Arduino Course 1.3
A discussion of the design trade-offs of speed, cost, and quality.
Programming Electronics Academy
Parallel Circuits: Base Electronics: 9
A description of basic parallel circuit analysis with Arduino.
Programming Electronics Academy
Resistance Part One: Base Electronics: 5
A discussion of resistance, and how to understand it.
Programming Electronics Academy
Prototyping Outline: Arduino Course 1.2
How outlining a project can greatly increase clarity in design.