Scientists Witness Two Dogs Mating for First Time

@drbahaadmourInside the Heart | Blood Leaves and Remains 🔄🫀 ────────── Your heart does not empty completely with every beat. 🔬 The left ventricular ejection fraction, or LVEF, measures how much blood the left ventricle pumps out during contraction. For example, an LVEF of 64% means the left ventricle ejects 64% of the blood volume it contains at the end of filling, while about 36% remains inside before the next heartbeat refills it. A value of 64% is within the usual normal range. Blood then

One Scale. One Chance. Can You Solve It? #learnontiktok #3d #USA #puzzle #game

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Class 9 Science Chapter 1 | Exploration: Entering the World of Secondary Science | Scientific Models

The White House is proposing a major overhaul of U.S. research funding, shifting billions of dollars away from traditional university channels toward individual scientists and AI-driven tools. The plan argues that reducing bureaucracy could speed up scientific breakthroughs by giving researchers more direct access to resources. Critics are likely to question whether moving funds away from universities could weaken the institutions that support long-term research and training. #whitehouse #usa #n

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Graham's Number: What Is G64 and Why It’s So Huge