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  2. Electric arc furnace - Wikipedia

    en.wikipedia.org/wiki/Electric_arc_furnace

    The theoretical minimum amount of energy required to melt a tonne of scrap steel is 300 kWh (1.09 GJ) (melting point 1,520 °C (2,768 °F)). Therefore, a 300-tonne, 300 MVA EAF will require approximately 132 MWh of energy to melt the steel, and a "power-on time" (the time that steel is being melted with an arc) of approximately 37 minutes. [10]

  3. CD-R - Wikipedia

    en.wikipedia.org/wiki/CD-R

    By 1992, the cost of typical recorders was down to $10,000–12,000, and in September 1995, Hewlett-Packard introduced its model 4020i manufactured by Philips, which, at $995, was the first recorder to cost less than $1000. [2] As of the 2010s, devices capable of writing to CD-Rs and other types of writable CDs could be found under $20.

  4. Brain–computer interface - Wikipedia

    en.wikipedia.org/wiki/Brain–computer_interface

    EEG biofeedback systems typically monitor four brainwave bands (theta: 4–7 Hz, alpha:8–12 Hz, SMR: 12–15 Hz, beta: 15–18 Hz) and challenge the subject to control them. Passive BCI uses BCI to enrich human–machine interaction with information on the user's mental state, for example, simulations that detect when users intend to push ...

  5. Wikipedia:Reference desk/Archives/Science/September 2005 ...

    en.wikipedia.org/wiki/Wikipedia:Reference_desk/...

    Reportedly, Peugeot 206 WRC's 2-liter turbocharged engine generates 635 Nm of torque at 4000 rpm. if i'm not mistaken, this makes 667 hp at the same rpm. but the car's maximum power output is reported to be 300 HP at 5250 rpm (and 300 HP is the maximum legal power output in the championship).

  6. Benjamin Franklin - Wikipedia

    en.wikipedia.org/wiki/Benjamin_Franklin

    Franklin bequeathed £1,000 (about $4,400 at the time, or about $125,000 in 2021 dollars [295]) each to the cities of Boston and Philadelphia, in trust to gather interest for 200 years. The trust began in 1785 when the French mathematician Charles-Joseph Mathon de la Cour , who admired Franklin greatly, wrote a friendly parody of Franklin's ...

  7. Falcon Heavy - Wikipedia

    en.wikipedia.org/wiki/Falcon_Heavy

    In 2011, SpaceX stated that the cost of reaching low Earth orbit could be as low as $2,200/kg ($1,000/lb) if an annual rate of four launches can be sustained, and as of 2011 planned to eventually launch as many as 10 Falcon Heavies and 10 Falcon 9s annually.

  8. Major League Soccer - Wikipedia

    en.wikipedia.org/wiki/Major_League_Soccer

    In September 2020, the league announced the formation of MLS Next, an academy league for MLS academy teams from the under-13 to under-19 level. [ 132 ] In 2022, the league signed a $2.5 billion, 10-year deal with Apple Inc. that made Apple TV the primary broadcaster for all MLS games beginning in 2023.

  9. Electric car use by country - Wikipedia

    en.wikipedia.org/wiki/Electric_car_use_by_country

    The Renault Zoe has led electric car sales in France since 2013, and is the country's all-time best selling plug-in with more than 100,000 units registered through June 2020. [378] A record of 315,978 light-duty plug-in vehicles were registered in 2021, up 62% from 2020, and the light-duty segment's market share rose to 15.1% in 2021. [96]