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  1. PEN - Penumbra, Inc.

    Yahoo Finance

    191.34-1.47 (-0.76%)

    at Wed, May 29, 2024, 4:00PM EDT - U.S. markets open in 8 hours 4 minutes

    Nasdaq Real Time Price

    • Open 190.51
    • High 193.18
    • Low 189.52
    • Prev. Close 192.81
    • 52 Wk. High 348.67
    • 52 Wk. Low 180.93
    • P/E 80.73
    • Mkt. Cap 7.42B
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  3. Aircraft laser strikes surge to record high in 2023 - AOL

    www.aol.com/news/aircraft-laser-strikes-surge...

    January 31, 2024 at 9:55 AM. Leila Register. Reports of lasers illegally pointed at aircrafts in flight rose to a new high in 2023, the latest spike in a series of steady increases during the past ...

  4. 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.

  5. 2022 in climate change - Wikipedia

    en.wikipedia.org/wiki/2022_in_climate_change

    July: a 5 MW floating solar park was installed in the Alqueva Dam reservoir, Portugal, enabling solar power and hydroelectric energy to be combined. Separately, a German engineering firm committed to integrating an offshore floating solar farm with an offshore wind farm to use ocean space more efficiently. [89]

  6. 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.

  7. Cost of electricity by source - Wikipedia

    en.wikipedia.org/wiki/Cost_of_electricity_by_source

    Block 5 of Irsching Power Station in Southern Germany uses natural gas as fuel in a combined cycle converting 1750 megawatts of thermal energy to 847 net MW of usable electricity. It cost €450 million to build. This works out to some €531 per kW of capacity. However, due to the uneconomical prospect of operating it as a peaking power plant ...

  8. Acetone - Wikipedia

    en.wikipedia.org/wiki/Acetone

    Acetone is a main ingredient in many nail polish removers because it breaks down nail polish. [75] It is used for all types of nail removal, like gel nail polish, dip powder and acrylic nails. [76] Acetone is often used for vapor polishing of printing artifacts on 3D-printed models printed with ABS plastic.