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  2. Spot welding - Wikipedia

    en.wikipedia.org/wiki/Spot_welding

    Spot welders can also be completely automated, and many of the industrial robots found on assembly lines are spot welders (the other major use for robots being painting). Spot welding is also used in the orthodontist's clinic, where small-scale spot welding equipment is used when resizing metal "molar bands" used in orthodontics.

  3. List of common carrier freight railroads in the United States

    en.wikipedia.org/wiki/List_of_common_carrier...

    About 700 railroads operate common carrier freight service in the United States. There are about 160,141 mi (257,722 km) of railroad track in the United States, nearly all standard gauge. Reporting marks are listed in parentheses. [1] A&R Terminal Railroad (ART) Aberdeen and Rockfish Railroad (AR)

  4. Electron-beam welding - Wikipedia

    en.wikipedia.org/wiki/Electron-beam_welding

    Many welder types have been designed, differing in construction, working space volume, workpiece manipulators, and beam power. Electron-beam generators (electron guns) designed for welding applications can supply beams with power ranging from a few watts up to some one hundred kilowatts.

  5. Congress could ban new drones from two Chinese manufacturers

    www.aol.com/news/dji-could-banned-launching...

    WASHINGTON (Reuters) -China-based DJI and Autel Robotics could be banned from selling new drones in the United States market under an annual military bill set to be voted on later this week by the ...

  6. Manifest Destiny? Trump’s expansionist ideas have U.S ... - AOL

    www.aol.com/manifest-destiny-trump-expansionist...

    (The Center Square) – President-elect Donald Trump has made international headlines by suggesting that Canada could become the 51st state and the U.S. could purchase Greenland. U.S. expansionist ...

  7. 'Large number' of Americans' metadata stolen by Chinese ...

    www.aol.com/news/large-number-americans-metadata...

    WASHINGTON (Reuters) -A large number of Americans' metadata has been stolen in the sweeping cyberespionage campaign carried out by a Chinese hacking group dubbed "Salt Typhoon," a senior U.S ...