• Short Summary

    LABORATORY ENGINEERS AT THE NATIONAL AERONAUTIC AND SPACE ADMINISTRATION MARSHALL SPACE FLIGHT ??? IN HUNSTVILLE,?

  • Description

    LABORATORY ENGINEERS AT THE NATIONAL AERONAUTIC AND SPACE ADMINISTRATION MARSHALL SPACE FLIGHT ??? IN HUNSTVILLE, ALABAMA ARE STUDYING A STRANGE PHENOMENON OF SOLIDIFICATION IN THEIR SEARCH FOR A METHOD OF DESIGNING A SPACECRAFT WHICH WILL WITHSTAND THE INTENSE HEAT AND EXTREME COLD OF OUTER SPACE. THE TECHNICIANS ARE EXPERIMENTING WITH PARAFFIN, SIMILAR TO THE WAXY SUBSTANCE GRANDMOTHER USED AS A LID ON HER JARS OF JAM, WHICH THEY BELIEVE COULD BE USED AS AN INSULATION MATERIAL.

    THE NASA ENGINEERS BELIEVE THAT THE PARAFFIN MAY BE DESTINED TO PLAY A BIG ROLE IN THE SPACE PROGRAMME. AS IT HAS PROVED TO BE AN ALMOST IDEAL THERMAL CONTROL DEVICE.

    THE OFFICIAL FILM SHOWS THE STRANGE PHENOMENON OF SOLIDIFICATION WHICH OCCURS WHEN THE TEMPERATURE OF THE MATERIAL DROPS BELOW FREEZING POINT. THE CRYSTALLISATION PROCESS CAN BE SEEN AS THE SHOOTING OUT OF LONG, FINGER-LIKE SPIKES.

    IN THE REVERSE, AS THE PARAFFIN MELTS, THE CAMERA RECORDS THE MATERIAL BREAKING UP INTO ROUNDED GLOBULES.

    NASA ENGINEERS BELIEVE THE "SLOW MELT ... SLOW FREEZE" PROCESS, WHICH THEY TECHNICALLY TERM "PASSIVE THERMAL CONTROL BY PHASE CHANGE MATERIALS" OFFERS AN IDEAL INSULATION FOR SPACECRAFT, EXPOSED TO THE LONG MARTIAN NIGHT.

    USED TO PROTECT INSTRUMENTS, THE MATERIAL WOULD WITHSTAND THE INTENSE RAYS OF THE SUN, BEFORE IT BEGAN TO MELT, AND WOULD GO INTO THE OTHER PHASE OF CRYSTALLISATION, WHEN THE SATELLITE PASSED BEYOND THE EARTH INTO THE FREEZING TEMPERATURE.

  • Tags

  • Data

    Film ID:
    VLVAB06MS8O8XRU7ZEE1XPA7U2XEO
    Media URN:
    VLVAB06MS8O8XRU7ZEE1XPA7U2XEO
    Group:
    Reuters - Source to be Verified
    Archive:
    Reuters
    Issue Date:
    07/05/1968
    Sound:
    Unknown
    HD Format:
    Available on request
    Stock:
    Colour
    Duration:
    00:01:30:00
    Time in/Out:
    /
    Canister:
    N/A

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