acetylene gas

11.23.09

Meet London's Robotic Firefighting Crew

By Anna Maria Jakubek Posted 07.29.2009 at 10:58 am 1 Comment

Robots are just like us: some become cooks, others go into sports, some intern for a while, and then there are the ones who find their calling in civic duty. Included in this last group are members of the recently unveiled London robotic firefighting team.

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Futuristic Metal Cutting for the Masses

Plasma-arc torches are sci-fi made real. And they slice through steel so easily, anyone can use them.
Posted 02.06.2004 at 1:55 pm 0 Comments

Dept.: Gray Matter
Investigator: Theodore Gray
Shop Tech: Plasma-arc torches
Project: Metal spiral
Time: 45 minutes
Element: Hafnium -- Appearance: Exotic and ductile heavy metal with
smooth silvery surface and high corrosion resistance Most common uses: Nuclear control rods, plasma-arc
torches, incandescent lamps and alloys Melting temp: 2,229�C Discovered: Denmark, 1932

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December 2009: Best of What's New

In our December issue, Popular Science names the 100 best innovations of the year: bombproof wallpaper, self-parking cars, the fastest helicopter, and 97 more. Plus inventor profiles and videos.

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