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  2. 6B7 helmet - Wikipedia

    en.wikipedia.org/wiki/6B7_helmet

    1998-2005. Variants. 6B7, 6B7-1, 6B7-1M. Specifications. Weight. 1,2 kg. 6B7 is a ballistic helmet of the Russian Armed Forces. Being the first aramid helmet in the Russian army, it was fielded as a replacement of SSh-68 helmet. It was adopted in the year 2000 as part of Borit-M program.

  3. 1-millimeter band - Wikipedia

    en.wikipedia.org/wiki/1-millimeter_band

    The current world distance record on the 1 mm band was 114 kilometres (71 mi) set by US stations WA1ZMS and W4WWQ on January 21, 2008. [4] [5]The longest distance achieved on 1 mm in the United Kingdom was 9.33 kilometres (5.80 mi) between stations G0FDZ and G8CUB on April 30 2019.

  4. Orders of magnitude (length) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(length)

    The centimetre (SI symbol: cm) is a unit of length in the metric system equal to 10−2 metres (⁠ 1 100 ⁠ m = 0.01 m). To help compare different orders of magnitude, this section lists lengths between 10 −2 m and 10 −1 m (1 cm and 1 dm). 1 cm – 10 millimetres. 1 cm – 0.39 inches. 1 cm – edge of a square of area 1 cm 2.

  5. 7mm Remington Ultra Magnum - Wikipedia

    en.wikipedia.org/wiki/7mm_Remington_Ultra_Magnum

    175 gr (11 g) PSP A-Frame. 3,025 ft/s (922 m/s) 3,555 ft⋅lbf (4,820 J) Test barrel length: 26". The 7mm Remington Ultra Magnum or 7mm RUM is a 7mm rifle cartridge introduced by Remington Arms in 2001.

  6. Laser safety - Wikipedia

    en.wikipedia.org/wiki/Laser_safety

    Laser radiation safety is the safe design, use and implementation of lasers to minimize the risk of laser accidents, especially those involving eye injuries. Since even relatively small amounts of laser light can lead to permanent eye injuries, the sale and usage of lasers is typically subject to government regulations.

  7. 'It was really surreal': North Carolina residents watched ...

    www.aol.com/news/really-heartbreaking-north...

    September 30, 2024 at 1:26 AM. ASHEVILLE, N.C. — As Helene battered western North Carolina, residents in Asheville were heartbroken after seeing floodwaters lift cars, trucks, billboards, and ...

  8. Molar concentration - Wikipedia

    en.wikipedia.org/wiki/Molar_concentration

    Molar concentration (also called molarity, amount concentration or substance concentration) is a measure of the concentration of a chemical species, in particular, of a solute in a solution, in terms of amount of substance per unit volume of solution. In chemistry, the most commonly used unit for molarity is the number of moles per liter ...

  9. Inside the poll numbers: Which key groups have moved — and ...

    www.aol.com/news/inside-poll-numbers-key-groups...

    Young voters, Black voters and female voters have all moved significantly since Kamala Harris replaced Joe Biden in the 2024 race. Latinos, seniors and independents have stayed relatively still.