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  2. Terraria - Wikipedia

    en.wikipedia.org/wiki/Terraria

    Terraria (/ t ə ˈ r ɛər i ə / ⓘ tə-RAIR-ee-ə [1]) is a 2011 action-adventure sandbox game developed by Re-Logic. The game was first released for Windows and has since been ported to other PC and console platforms.

  3. Hypersonic weapon - Wikipedia

    en.wikipedia.org/wiki/Hypersonic_weapon

    The Silbervogel was the first design for a hypersonic weapon and was developed by German scientists in the 1930s, but was never constructed. [6]The ASALM (Advanced Strategic Air-Launched Missile) was a medium-range strategic missile program developed in the late 1970s for the United States Air Force; the missile's development reached the stage of propulsion-system testing, test-flown to Mach 5 ...

  4. Soft-faced hammer - Wikipedia

    en.wikipedia.org/wiki/Soft-faced_hammer

    Soft faced hammer or mallet with plastic faces. A soft-faced hammer or mallet is a hammer designed to offer driving force without damaging surfaces. They also reduce the force transmitted back to the arm or hand of the user, by temporarily deforming more than a metal hammer would.

  5. Tempering (metallurgy) - Wikipedia

    en.wikipedia.org/wiki/Tempering_(metallurgy)

    A differentially tempered sword. The center is tempered to a springy hardness while the edges are tempered slightly harder than a hammer. Differential tempering is a method of providing different amounts of temper to different parts of the steel.

  6. Power hammer - Wikipedia

    en.wikipedia.org/wiki/Power_hammer

    The power hammer is a direct descendant of the trip hammer, differing in that the power hammer stores potential energy in an arrangement of mechanical linkages and springs, in compressed air, or steam, and by the fact that it accelerates the ram on the downward stroke. This provides more force than simply allowing the weight to fall.

  7. List of Warhammer Fantasy characters - Wikipedia

    en.wikipedia.org/wiki/List_of_Warhammer_Fantasy...

    This is a list of many important or pivotal fictional figures in the history of the Warhammer Fantasy universe.. These characters have appeared in the games set in the Warhammer world, the text accompanying various games and games material, novels by Games Workshop and later Black Library and other publications based on the Warhammer setting by other publishers.

  8. Modal testing - Wikipedia

    en.wikipedia.org/wiki/Modal_testing

    Modal impact hammer with interchangeable tips and accompanying temporal and frequency responses. An ideal impact to a structure is a perfect impulse, which has an infinitely small duration, causing a constant amplitude in the frequency domain; this would result in all modes of vibration being excited with equal energy. The impact hammer test is ...

  9. Hammerstone - Wikipedia

    en.wikipedia.org/wiki/Hammerstone

    Then, the hard hammer was relegated to the first stages of making an artifact: the initial roughing, the primary workmanship (the creation of preforms, which would later be refined with a soft or pressure hammer), the attack of percussion planes inaccessible to the soft hammer, the preparation of percussion platforms in certain nuclei, etc.