Paul Andersen starts by defining transpiration as evaporation off of a leaf. He then describes how a potometer can be used to measure the rate of transpiration in different environments.

Mr. Andersen walks you through the cellular respiration lab.

This video explains the concept of calorimetry. The video demonstrates how to use calorimetry in a school lab to measure the energy content of food. It goes through the steps of the experiment and how to perform fair testing, as well as...

Howcast - Learn about the top seven places to eat and drink in Bangkok in this Howcast travel video.

Welcome back to the Fluctus Channel on a feature discussing the use of tugboats and fireboats and their importance to maritime assets and operations. Fluctus is a website and YouTube channel dedicated to sea geeks. Whenever you are...

Traveling forward in time is not a problem. You're doing that now. Can we travel backward in time? There is a theoretically possible way to do it using wormholes.



One solution to general relativity...

This video covers the historic third march from Selma to Montgomery on March 21, 1965, led by Dr. Martin Luther King Jr. With protection from the National Guard, over 3,000 marchers set out on a 54-mile journey that grew to 25,000...

The world is familiar with classical icons such as the Parthenon in Athens, but recent research suggests that both the ancient Greeks and the Romans saw their marble treasures very differently from the way we see them today. Close...

Glucose storage in the human body happens in different ways. After eating a delicious slice of cake, our bodies need to process all the sugar we've ingested. Some is used for energy, and the excess is stored.

Bacteria are a type of microorganism. If they have enough nutrients and are in a suitable temperature, bacteria can multiply once every 20 minutes. So, after one hour a single bacterium could have reproduced to give eight bacteria. They...

Let's explore dimensional formulas.<br/<br/>>

This clip is from the chapter "Excel 2019 Beginners: Working with Sheets" of the series "The Complete Excel Guide: Beginners to Advanced".In this section, we'll start working with sheets.

Algae plus salt water equals ... fuel? At TEDxNASA@SiliconValley, Bilal Bomani reveals a self-sustaining ecosystem that produces biofuels -- without wasting arable land or fresh water.

NSF-funded researchers at Brigham Young University developed a mini mass spectrometer just as powerful as the larger instrument and less expensive. The device is compact enough for use in the field and can detect chemical weapons,...

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Learn the basics about the properties of oxygen. Oxygen is a gas, it has no smell, colour, or taste; but without it, we as humans would not be able to inhabit planet Earth. When cooled to a very low temperature, it will form a liquid and...

Resonance Fluorescence: A Special Case of Fluorescence