Explaining a car on Instagram: "Follow (us) @ExplainingACar to learn something NEW about vehicles every day 🚗💫 The sound of a V engine changes dramatically as you move from 2 cylinders to 16 — every jump adds depth, rhythm, and character 🎶⚙️ A V2 (like in a Harley-Davidson) gives that signature uneven “potato-potato” rumble — raw, throaty, and full of vibration. Move to a V4 and it smooths out, delivering a tighter, sportier buzz often heard in bikes like the Honda VFR. 🏍️ V6 engines bring b

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History Photographed on Instagram: "This is the phenomenon of astronauts temporarily having difficulty readjusting to Earth's gravity after spending time in space.⁠ ⁠ This condition, which is called orthostatic intolerance, is a condition where the bodies struggle to adjust to Earth’s gravity in an upright position. ⁠ ⁠ In space, their bodies adapt to microgravity, which weakens leg muscles and causes cardiovascular changes. ⁠ ⁠ Back on Earth, standing up can lead to a sudden drop in blood press