☎️. After the invention of telephone in 1876, Thomas Alva Edison Suggested the word 'Hello' to start conversation. 🛰️. The international space station was the most expensive object ever constructed in $150 billions. 🐟. Only 8-12 humans are killed per year by sharks, but 100 million sharks are killed per year by humans to harvest their fins. 🌋. 90% of all volcanic activity occurs in the ocean. 🌍. There are really only 23 hours, 56 minutes, and 4.09 seconds in a day, not 24 hours. 🌞. It takes 8 minutes 20 seconds for light to travel from the Sun's surface to the Earth. 👨. Human tapeworms can grow up to 22.9 m. 🐠. An electric eel can produce a shock of up to 650 volts. 🐾. Giraffes often sleep for only 20 minutes in any 24 hours. They may sleep up to 2 hours (in spurts not all at once), but this is rare. They never lie down. 📞. On the day that Alexander Graham Bell was buried, the entire US telephone system was shut down for 1 minute in tribute. 🕷️. Spiders can recogn
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