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2. Beaufort scale - Wikipedia

   en.wikipedia.org/wiki/Beaufort_scale

   Wind speed on the Beaufort scale is based on the empirical relationship: [6] v = 0.836 B 3/2 m/s; v = 1.625 B 3/2 knots (=) where v is the equivalent wind speed at 10 metres above the sea surface and B is Beaufort scale number.

3. Signal strength in telecommunications - Wikipedia

   en.wikipedia.org/wiki/Signal_strength_in...

   In telecommunications, [1] particularly in radio frequency engineering, signal strength refers to the transmitter power output as received by a reference antenna at a distance from the transmitting antenna. High-powered transmissions, such as those used in broadcasting, are expressed in dB-millivolts per metre (dBmV/m).

4. Maximum sustained wind - Wikipedia

   en.wikipedia.org/wiki/Maximum_sustained_wind

   Unlike gusts, the value of these winds are determined via their sampling and averaging the sampled results over a period of time. Wind measuring has been standardized globally to reflect the winds at 10 metres (33 ft) above mean sea level, [nb 1] and the maximum sustained wind represents the highest average wind over either a one-minute (US) or ...

5. Mobile phone signal - Wikipedia

   en.wikipedia.org/wiki/Mobile_phone_signal

   A mobile phone signal (also known as reception and service) is the signal strength (measured in dBm) received by a mobile phone from a cellular network (on the downlink). Depending on various factors, such as proximity to a tower , any obstructions such as buildings or trees, etc. this signal strength will vary.

6. Antenna types - Wikipedia

   en.wikipedia.org/wiki/Antenna_types

   Because they are top-fed, inverted monopoles produce a strong signal lower to the horizon than an ordinary bottom-fed monopole, whose maximum radiation must angle-up from the base, to pass above surrounding obstructions. [12] Batwing Also called a superturnstile, is a specialized broadside array antenna used for VHF television broadcasting. It ...

7. This ‘reverse umbrella’ doesn’t blow up in the wind, and it ...

   www.aol.com/lifestyle/reverse-umbrella-doesn-t...

   This may just be the best umbrella ever. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 more ways to reach us. Mail. Sign in. Subscriptions; Business ...

8. List of countries by Internet connection speeds - Wikipedia

   en.wikipedia.org/wiki/List_of_countries_by...

   This is a sortable list of broadband internet connection speed by country, ranked by Speedtest.net data for March 2024, [1] and with M-Lab data for June 2023 [2] Country/Territory Median

9. Wind speed - Wikipedia

   en.wikipedia.org/wiki/Wind_speed

   An anemometer is commonly used to measure wind speed. Global distribution of wind speed at 10m above ground averaged over the years 1981–2010 from the CHELSA-BIOCLIM+ data set [1] In meteorology, wind speed, or wind flow speed, is a fundamental atmospheric quantity caused by air moving from high to low pressure, usually due to changes in ...