• Short Summary

    THE WORLD'S LARGEST OPTICAL MIRROR, DESIGNED TO HELP SIMULATE THE CRUEL CONDITIONS OF OUTER SPACE, WAS READY MONDAY FOR A 400-MILE TRUCK RIDE TO PASADENA'S JET PROPULSION LABORATORY.

  • Description

    THE WORLD'S LARGEST OPTICAL MIRROR, DESIGNED TO HELP SIMULATE THE CRUEL CONDITIONS OF OUTER SPACE, WAS READY MONDAY FOR A 400-MILE TRUCK RIDE TO PASADENA'S JET PROPULSION LABORATORY.

    THE MIRROR, 23 FEET DIAMETER, WAS COMPLETED AT TINSLEY LABORATORIES, SC. IT WILL LEAVE WEDNESDAY ON ITS LONG JOURNEY OVER A CAREFULLY MONITORED ROUTE TO CALTECH'S CAMPUS.

    THE MIRROR WILL BE USED IN A 25-FOOT SIMULATION CHAMBER AT CALTECH WHERE IT WILL REFLECT HIGH INTENSITY ARTIFICIAL LIGHT INTO A HUGE VACUUM CHAMBER. THE LIGHT WILL SIMULATE THE ENERGY OF THE SUN IN OUTER SPACE.

    SCIENTISTS BELIEVE SPACECRAFT AND MATERIALS TO BE USED IN SPACE CAN BE PRE-TESTED FOR ENDURANCE AND OPERATING CHARACTERISTICS IN THE CHAMBER.

    THE 276-INCH DIAMETER NICKEL AND ALUMINUM MIRROR IS 72 INCHES LARGER THAN THE GROUND GLASS MIRROR AT CALTECH'S MOUNT PALOMAR OBSERVATORY, WHICH HAD BEEN THE WORLD'S LARGEST REFLECTOR.

    THE NEW MIRROR HAS A TWO-INCH ALUMINUM SURFACE, PLATED WITH A THIN COATING OF HIGHLY POLISHED NICKEL. ITS STRUCTURE IS RIB-WELDED ALUMINUM, WITH COOLING PIPES ATTACHED TO THE BACK TO PREVENT THE MIRROR FROM HEATING.

    A SPECIAL GRINDING MACHINE WAS DESIGNED BY TINSLEY FOR THE SIX-MONTH GRINDING AND PLISHING OPERATION. IT TOOK MORE THAN 4,000 MAN-HOURS TO FABRICATE, COAT AND GRIND THE MIRROR.

  • Tags

  • Data

    Film ID:
    VLVA73ZQLKRGJJL9ZYFXZT15F4BP5
    Media URN:
    VLVA73ZQLKRGJJL9ZYFXZT15F4BP5
    Group:
    Reuters - Source to be Verified
    Archive:
    Reuters
    Issue Date:
    27/03/1967
    Sound:
    Unknown
    HD Format:
    Available on request
    Stock:
    Colour
    Duration:
    00:02:28:00
    Time in/Out:
    /
    Canister:
    N/A

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