This book will explain how light-emitting diodes (LEDs) work and what products they are used in, as well as comparing LEDs with traditional incandescent and fluorescent light bulbs.
Describes the life and work of the scientist who won two Nobel Prizes and died of radiation poisoning from years of investigating the dangerous elements that she herself had discovered.
Students begin by studying the electromagnetic spectrum and come to understand how astronomers study the sky by detecting invisible light. After learning the types and properties of visible and invisible light, students are ready to investigate the massive and violent waves of radiation in space called gamma-ray bursts.
[WEB SITE] Ripple Tank Simulation : For Light and sound : It demonstrates waves in two dimensions, including such wave phenomena as interference, diffraction (single slit, double slit, etc.), refraction, resonance, phased arrays, and the Doppler effect. To get started with the applet, just go through the items in the Example menu in the upper right. You can also draw on the screen with the mouse.
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Light and dark -- Look in the mirror -- Bigger and smaller -- When light bends -- All about lenses -- Colours of light -- Mix-and-match colours -- Paint with light -- Seeing light -- Moving images -- Rods of light -- The power of light -- Light history.
Eyes have it -- Seeing the light -- Now you see it -- Eye of the beholder -- Near and far -- Light and lenses -- Convex or concave? -- Charting your vision -- A new view -- Making a spectacle -- A look at contacts -- Protect your eyes -- Seeing is believing.
KIT: The outside detector [realia] : ultraviolet detector. - Contains UV Detecting Beads inside of a clear plastic bottle preform. When the detector is shielded from UV radiation, the beads are white. When exposed to UV radiation (between 360 and 300 nm wavelength), the beads turn purple. This detector can change color thousands of times.
Chernobyl’s Wild Kingdom: life in the Dead Zone By Rebecca L. Johnson Twenty-First Century Books.
Before the radio -- Radio waves -- Guglielmo marconi -- Early broadcasting -- On the air -- Radios at home -- Golden age of radio -- Sending a signal -- Inside a radio -- Different radios -- Invisible waves -- Future of radio. Gr.3-6
KIT:Wave apparatus model-Crank the handle and will generate longitudinal and transverse waves. ... students will generate transverse and longitudinal waves and describe their differentiating characteristics. They'll immediately see the wave forms and how they propagate. Apparatus can be used to demonstrate sound, light and heat waves; wave forms; and interference and propagation of wave forms.
Presents a series of investigations that effectively challenge commonly held misconceptions and lead to a deeper understanding of the nature of light and color, and the color spectrum.
KIT : Newtons Colour Disc - Light & Colour - Rotate the colored disc to demonstrate that white light is composed of the seven colors of the spectrum.