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  1. PEN - Penumbra, Inc.

    Yahoo Finance

    188.01-3.33 (-1.74%)

    at Thu, May 30, 2024, 4:00PM EDT - U.S. markets closed

    After Hours 187.97 -0.04 (-0.02%)

    Delayed Quote

    • Open 190.18
    • High 192.07
    • Low 185.13
    • Prev. Close 191.34
    • 52 Wk. High 348.67
    • 52 Wk. Low 180.93
    • P/E 79.33
    • Mkt. Cap 7.29B
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  3. History of radiation protection - Wikipedia

    en.wikipedia.org/wiki/History_of_radiation...

    § 20 § 20 Röntgenverordnung (röv_1987) [§ 20 X-ray Ordinance] (in German) and § Annex+2 Annex 2 (to § 8 para. 1 sentence 1 RöV) (röv_1987) (in German) Depending on the application, nuclear medicine requires even more extensive protective measures, up to and including concrete walls several meters thick.

  4. United States five-dollar bill - Wikipedia

    en.wikipedia.org/wiki/United_States_five-dollar_bill

    On April 20, 2016, Treasury Secretary Jacob Lew announced that the $5, $10, and $20 would all undergo redesign prior to 2020. The changes would add new features to combat counterfeiting and make them easier for blind citizens to distinguish.

  5. Parker Pen Company - Wikipedia

    en.wikipedia.org/wiki/Parker_Pen_Company

    The Parker Pen Company is an American manufacturer of luxury writing pens, founded in 1888 by George Safford Parker in Janesville, Wisconsin, United States. In 2011 the Parker factory at Newhaven, East Sussex , England , was closed, and its production transferred to Nantes , France .

  6. Cost of electricity by source - Wikipedia

    en.wikipedia.org/wiki/Cost_of_electricity_by_source

    Cost of electricity by source. Different methods of electricity generation can incur a variety of different costs, which can be divided into three general categories: 1) wholesale costs, or all costs paid by utilities associated with acquiring and distributing electricity to consumers, 2) retail costs paid by consumers, and 3) external costs ...

  7. Project Excalibur - Wikipedia

    en.wikipedia.org/wiki/Project_Excalibur

    Project Excalibur was a Lawrence Livermore National Laboratory (LLNL) Cold War –era research program to develop an X-ray laser system as a ballistic missile defense (BMD) for the United States. The concept involved packing large numbers of expendable X-ray lasers around a nuclear device, which would orbit in space.

  8. Singapore dollar - Wikipedia

    en.wikipedia.org/wiki/Singapore_dollar

    One-dollar banknotes were discontinued and gradually replaced with an aluminium-bronze coin. The 5-cent coin was also changed to aluminum-bronze while the 10, 20, and 50 cents remained copper-nickel. Limited numbers of commemorative bimetallic 5-dollar coins with scalloped edges were also periodically issued later during this series.