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Results: 914



#Item
581Radioactivity / Nuclear chemistry / Radiation / Isotopes / Radioactive decay / Tritium / Neutron / Radionuclide / Nuclide / Physics / Chemistry / Nuclear physics

Alpha A positively charged particle made up of two neutrons and two protons emitted by certain radioactive nuclei. Alpha particles can be stopped by a few inches of air or thin layers of light materials, such as a sheet

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Source URL: www.ecy.wa.gov

Language: English - Date: 2008-06-30 12:53:29
582

AND BE SEEN AT NIGHT. Making sure your bicycle has reflectors and a light isn’t just a good idea – it’s required by law. Without lights and reflectors, you are virtually invisible to drivers at night. So lighten up

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Source URL: www.oregon.gov

- Date: 2012-04-10 23:59:18
    583Tire / Lakeport /  California / Tires

    Lake County Tire Amnesty Residents of Lake County may dispose of 20 passenger or light truck tires, up to R19.5, free of charge. Tires will be accepted with and without rims. The Tire Amnesty Program is not for farm, he

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    Source URL: www.recycling.co.lake.ca.us

    Language: English
    584Health / Hospice / Schuylkill River / Wissahickon Creek / Medicine / Palliative medicine / Healthcare in the United States

    Penn Presbyterian Medical Center VOLUME 4 • ISSUE 25 • DECEMBER 18, 2009 Staff, Community Gather for Penn Wissahickon Hospice Light Up a Life Event

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    Source URL: www.uphs.upenn.edu

    Language: English - Date: 2009-12-14 12:43:52
    585Tire / Lakeport /  California / Tires

    Lake County Tire Amnesty Residents of Lake County may dispose of 20 passenger or light truck tires, up to R19.5, free of charge. Tires will be accepted with and without rims. The Tire Amnesty Program is not for farm, he

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    Source URL: www.recycling.co.lake.ca.us

    Language: English
    586Local Group / Large Magellanic Cloud / Dorado constellation / Supernova remnants / Light sources / Tarantula Nebula / Nebula / R136 / SN 1987A / Astronomy / Space / NGC objects

    HEIC1105: EMBARGOED UNTIL 10:00 CET/05:00 am EDT 15 Mar, 2011 http://www.spacetelescope.org/news/heic1105 Photo release: Arachnophobes Beware: Hubble Snaps Close-up of the Tarantula

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    Source URL: www.spacetelescope.org

    Language: English - Date: 2011-03-14 07:53:17
    587Planetary science / Space plasmas / Standard candles / Plasma physics / Star / Celestia / Pulsar / European Southern Observatory / Sun / Astronomy / Space / Light sources

    Adventure Science Center Grades 5 & up www.adventuresci.com[removed]www.adventuresci.com

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    Source URL: www.spitzinc.com

    Language: English - Date: 2008-11-21 12:56:30
    588Teacher / Education reform / Education / Teaching / Educators

    NAEPDC State Staff CoABE PreConference: Ramping up the knowledge and skills of adult teachers. In light of the Common Core Standards, the new GED ®, College and Career Readiness, adult education instructors will have to

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    Source URL: naepdc.org

    Language: English - Date: 2012-05-04 10:00:20
    589Edison / Phonograph / Charles Batchelor / Francis Jehl / Thomas Edison / United States / Science

    3rd(7) Thomas Edison Thomas Alva Edison lit up the world with his invention of the electric light. Without him, the world might still be a dark place. However, the electric light was not his only invention. He also inve

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    Source URL: www.ncsu.edu

    Language: English - Date: 2005-11-16 14:07:36
    590Cosmic distance ladder / Parsec / Milky Way / Light-year / Astronomy / Physical cosmology / Astrometry

    Equations with one variable II Calculations involving a single variable come up in many different ways in astronomy. One way is

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    Source URL: spacemath.gsfc.nasa.gov

    Language: English - Date: 2010-05-02 04:38:56
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