Menschlicher Korper #quiz #trivia #wissen #deutsch #allgemeinwissen

SCIENCE | HISTORY | FACTS | EXPERIMENT on Instagram: "During winter, windows play a critical role in keeping homes warm and energy-efficient. What looks like a simple glass panel is actually a carefully engineered thermal barrier designed to fight heat loss. 1️⃣ Thermal Expansion & Seals: Window frames are built with materials that expand and contract predictably with temperature changes. Rubber gaskets and weather stripping tighten in cold conditions, creating an airtight seal. 🔒 2️⃣ Double or

SCIENCE | HISTORY | FACTS | EXPERIMENT on Instagram: "Sandbags are critical during floods, construction, and emergency situations, but filling them by hand is slow and exhausting. This video shows a smart, efficient on-site method that saves time, labor, and energy. 1️⃣ Gravity-Based Filling: Instead of shovels, workers use a hopper or chute system that lets sand flow directly into bags using gravity. This drastically speeds up the process. ⏱️ 2️⃣ Consistent Volume: Each bag receives a uniform a