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24        <h1 class="site-title">PhysicsGuy.com</h1>
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26            Tracking real-world discoveries, charting fictional frontiers,<br> and exploring the physics between them.
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39            <h2>Scientists Opened a Sealed Envelope After 10 Years. Gravity Still Didn&apos;t Make Sense.</h2>
40            <p>A decade-long blinded NIST torsion-balance experiment yields a new value for the gravitational constant G that disagrees with a prior BIPM measurement.</p>
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