• Anti-Gravity?

    From Rixter@RICKSBBS to all on Sat Nov 30 10:07:00 2024
    Anti-Gravity?

    Japanese scientist's findings not expected to survive further
    investigation. Japanese scientists have reported that small
    gyroscopes lose weight when spun under certain conditions,
    apparently in defiance of gravity. If proved correct, the finding
    would mark a stunning scientific advance, but experts said they
    doubted that it would survive intense scrutiny.

    A systematic way to negate gravitation, the attraction among
    all masses and particles of matter in the universe, has eluded
    scientists since the principles of the force were first elucidated
    by Isaac Newton in the 17th century.

    The anti-gravity work is reported in the Dec. 18 issue of
    `Physical Review Letters,' which is regarded by experts as one of
    the world's leading journals of physics and allied fields. Its
    articles are rigorously reviewed by other scientists before being
    accepted for publication, and it rejects far more than it accepts.

    Experts who have seen the report said it seemed to be based
    on sound research and appeared to have no obvious sources of
    experimental error, but they cautioned that other seemingly
    reliable reports have collapsed under close examination.

    The work was performed by Hideo Hayasaka and Sakae Takeuchi
    of the engineering faculty at Tohoku University in Sendai, Japan.

    Unlike the exaggerated claims made for low-temperature, or
    "cold," nuclear fusion this year, the current results are
    presented with scientific understatement. The authors do not claim
    to have defied gravity, but simply say their results "cannot be
    explained by the usual theories."

    More important, the experiment is outlined in rich detail,
    ensuring that other scientist can try to duplicate and assess it.

    "It's an astounding claim," said Dr. Rober L. Park, a
    professor of physics at the University of Maryland who is director
    of the Washington office of the American Physical Society, which
    publishes `Physical Review Letters'. "It would be revolutionary if
    true. But it's almost certainly wrong. Almost all extraordinary
    claims are wrong."

    The experiment looked at weight changes in spinning
    mechanical gyroscopes whose rotors weighed 140 and 176 grams, or 5
    and 6.3 ounces. When the gyroscopes were spun clockwise, as viewed
    from above, the researchers found no change in their weight. But
    when spun counterclockwise, they appeared to lose weight.

    The rate of decrease was small, ranging up to 11-thousandths
    of a gram when the gyroscopes turned at 13,000 rpm. But two
    effects were significant. First, the weight loss increased as
    speed did. Second, the pattern was stronger with the larger
    gyroscope, indicating that the results might be applied to still
    larger objects.



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