Tag: TED Education

How does caffeine keep us awake? – Hanan Qasim

How does caffeine keep us awake? – Hanan Qasim

Over 100,000 metric tons of caffeine are consumed around the world every year. That’s equivalent to the weight of 14 Eiffel Towers. Most of this caffeine is consumed in coffee and tea, but it’s also ingested in some sodas, chocolate, caffeine pills, and even beverages labeled decaf. Caffeine helps us feel alert, focused, happy, and …

How do ocean currents work? – Jennifer Verduin

How do ocean currents work? – Jennifer Verduin

In 1992, a cargo ship carrying bath toys got caught in a storm. Shipping containers washed overboard, and the waves swept 28,000 rubber ducks and other toys into the North Pacific. But they didn’t stick together. Quite the opposite– the ducks have since washed up all over the world, and researchers have used their paths …

When will the next ice age happen? – Lorraine Lisiecki

When will the next ice age happen? – Lorraine Lisiecki

Twenty thousand years ago, the Earth was a frigid landscape where woolly mammoths roamed. Huge ice sheets, several thousand meters thick, encased parts of North America, Asia, and Europe. We commonly know it as the “Ice Age.” But geologists call it the Last Glacial Maximum. That’s because it’s the most recent time that ice reached …

How to manage your time more effectively (according to machines) – Brian Christian

How to manage your time more effectively (according to machines) - Brian Christian

المترجم: Hamzeh Koumakliالمدقّق: Ines Azabou في صيف عام 1997، حطت مركبة ناسا الاستكشافية على سطح المريخ، وبدأت بإرسال صور مذهلة ورائعة إلى الأرض. ولكن بعد عدة أيام، حدث شيءٌ مهول. انقطعت عملية الإرسال. ونتيجةً لذلك، كانت المركبة تقوم بالتأجيل؛ مُبقيةً نفسها مشغولة بشكل تاموفشلت في أداء عملها الأهم. ما الذي كان يحدث؟ تبيّن أن هناك …