قياس جديد يترك لغز ثابت الجاذبية قائماً
الأبحاث
ScienceDaily · · 1 دقائق قراءة

قياس جديد يترك لغز ثابت الجاذبية قائماً

أعاد فريق في المعهد الوطني للمعايير والتكنولوجيا تنفيذ تجربة دقيقة لقياس ثابت الجاذبية الكوني المعروف بـ"G" بعد عقد من إخفاء رقم حاسم لتجنب التحيز. النتيجة خففت بعض الشكوك لكنها لم تحل التباينات التاريخية في قياس قوة الجاذبية بدقة.

AI

ملخص الذكاء الاصطناعي

  • أعاد فريق في المعهد الوطني للمعايير والتكنولوجيا تنفيذ تجربة دقيقة لقياس ثابت الجاذبية الكوني المعروف بـ"G" بعد عقد من إخفاء رقم حاسم لتجنب التحيز. النتيجة خففت بعض الشكوك لكنها لم تحل التباينات التاريخية في قياس قوة الجاذبية بدقة.
  • تُظهر القصة أن حتى الثوابت الأساسية في الفيزياء ما زالت تتطلب قياسات أكثر دقة، ما يؤثر في فهمنا للنماذج العلمية التي تصف الكون.
  • For more than 200 years, scientists have struggled to pin down the exact strength of gravity — and one physicist spent a decade chasing the answer while keeping his own results hidden from himself. Stephan Schlamminger and his team at NIST painstakingly recreated a landmark French experiment designed to measure “big G,” the universal gravitational constant that governs everything from falling apples to galaxies. When he finally opened a sealed envelope containing the secret number needed to decode the experiment, the results brought both relief and disappointment

For more than 200 years, scientists have struggled to pin down the exact strength of gravity — and one physicist spent a decade chasing the answer while keeping his own results hidden from himself. Stephan Schlamminger and his team at NIST painstakingly recreated a landmark French experiment designed to measure “big G,” the universal gravitational constant that governs everything from falling apples to galaxies.

When he finally opened a sealed envelope containing the secret number needed to decode the experiment, the results brought both relief and disappointment

الوسوم: #الجاذبية #ثابت الجاذبية #فيزياء القياس #المعايير العلمية #تجارب دقيقة
المصدر الأصلي: ScienceDaily

● اقرأ أيضا

New superconducting X-ray detector is up to 1,000 times more sensitive الأبحاث

New superconducting X-ray detector is up to 1,000 times more sensitive

A groundbreaking superconducting X-ray spectrometer has begun operation at BESSY II, giving Europe its first TES-based system and boosting photon detection efficiency by up to 1,000 times. The advance enables scientists to explore atomically thin materials, nanostructures, and ultra-dilute samples with remarkable speed and sensitivity.

ScienceDaily
Why middle age is becoming a breaking point in the U.S. الأبحاث

Why middle age is becoming a breaking point in the U.S.

A new international study finds that middle-aged Americans are lonelier, more depressed, and experiencing worse memory and health than earlier generations. Researchers say growing financial strain, weaker social supports, and chronic stress may explain why the U.S. is falling behind other wealthy nations.

ScienceDaily
Scientists mapped every neural connection in a fruit fly and found a surprise الأبحاث

Scientists mapped every neural connection in a fruit fly and found a surprise

A groundbreaking new connectome maps every neural connection in an adult fruit fly’s central nervous system, creating an unprecedented view of how the brain and body work together. The findings suggest that complex behaviors emerge from distributed local circuits rather than a single central controller, offering new clues about intelligence, movement, and brain function.

ScienceDaily