Why must we measuring blood pressure at the arm?

BloodPressure heart

Blood pressure is normally measured with the cuff of the sphygmomanometer around the arm. Suppose the blood pressure were measured with the cuff around the calf of the leg of a standing person. Would the reading of the blood pressure be the same here as it is for the arm? Answer: No, the blood pressure measured at the calf would …

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Why does the Earth rotates so slowly?

Sun Rise On Earth From Space Wallpaper HD

Question: The eight planets rotate on their own axes at different speeds. Generally, the greater the mass, the faster the speed. Jupiter, the largest planet, has also the fastest speed of rotation of 9 hours, 50 minutes. Mars, the smallest of the outer planets, rotates in 24 hours 37 minutes. The Earth is about 10 times as massive as Mars, …

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Why air doesn’t crush us?


Question: Air is heavy enough to crush us, but why doesn’t it? Why do we often make the mistake of thinking air weighs nothing? Answer: Contrary to the perception of weightlessness, air is indeed remarkably heavy. Within the confines of a typical room, the air itself contributes to a substantial mass, potentially exceeding 100 kilograms. Despite its weight, the pervasive …

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What about the other side of the Moon?

Question: All the manned landings on the moon took place on the side of the moon facing the Earth. Why not on the other side? Answer: The strategic decision to conduct all manned moon landings on the side facing Earth stems from a fundamental constraint – the necessity for constant communication between astronauts and mission control. This deliberate choice arises …

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Unveiling the Wonders of Quantum Physics: Mind-Blowing Facts You Need to Know

wonders of quantum physics

Introduction Quantum physics, often regarded as the realm of the mysterious and perplexing, is a branch of science that delves into the fundamental building blocks of our universe. Prepare to be fascinated as we unravel mind-blowing facts that showcase the incredible and sometimes bizarre nature of quantum physics. 1. Quantum Superposition: A Particle’s Dual Life In the quantum world, particles …

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Looking to the Future During Aerospace Industry’s Transition Period

There has never been a better time to be an aerospace engineer. What was once considered a career meant for the anti-social, super nerds of high schools across the globe is now falling into the laps of our bright next generation. All jokes aside, though, exposure is not the only reason why aerospace is booming right now. We have the …

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