Nuclear energy can be harmful when radioactivity is absorbed by cells of the body. Discover how radioactivity can damage bone marrow and red blood cells with information from a science teacher in this free video on nuclear energy and science lessons.
Inertia refers to resistance to change or movement, so that the bigger the inertia, the bigger the force needed to be applied to the object. Lear more about inertia as a resistance to changes of movement with information from a science teacher in this free video on mechanics and science lessons.
Hydrogen is the simplest atomic material, and it is made of one proton and one electron. Find out why hydrogen is considered to be a reactive material with information from a science teacher in this free video on physical science lessons.
The sun is a star, which is a ball of burning gas that stays as it is through thermonuclear reactions. Learn about fusion reactions that occur in the sun with information from a science teacher in this free video on the sun and science lessons.
Light is a form of electromagnetic radiation, which always travels at a speed of 186,000 miles per second in a vacuum. Discover how light travels slower in transparent media with information from a science teacher in this free video on electromagnetic radiation and science lessons.
Heat can be used to produce electricity by creating steam when combined with different fuels. Find out how different power stations can use heat to produce electricity with information from a science teacher in this free video on electricity and science lessons.
Nuclear energy is most often used to form a power station because of how expensive it is to produce. Find out how nuclear power stations are used to produce electricity with information from a science teacher in this free video on nuclear energy and science lessons.
Google Tech Talks
November 13, 2006
ABSTRACT
A new ultracapacitor technology from APCT (US-Ukrainian start-up) provides an efficient, low cost means of managing power delivery for applications ranging from hand held devices to hybrid vehicles and power generating systems of all types. When integrated into battery powered devices, the APCT technology can extend battery life by as much as 400%, lowering the cost of batteries and reducing hazardous waste streams. Fast charge/discharge cycling with 95% efficiency improves performance and lowers cost for fuel cell vehicles and hybrid electric automobiles. High energy density and hundreds of thousands of cycles provides critical load leveling…
This conference on Emerging Energies Technologies takes an unbiased look at how the United States can make the transition from dependency on carbon-based fuels to a sustainable alternative fuels-based future. In this program Nobel laureate Alan Heeger of UCSB and Joan Ogden of UC Davis give their perspectives on renewable energy. Series: “Technology Management Program” [10/2007] [Public Affairs] [Show ID: 13287]
