Top 5 causes of winter drowsiness and effective tips
Why do I feel like sleeping all the time in winter? Is this normal or should I be…
Frost and vision: why don’t eyes freeze?
If you have ever gone outside in severe frost, you have definitely noticed: your nose, ears and fingers…
Weight of clouds: incredible facts that will change your mind
Clouds seem light and airy. They float in the sky, change shape, float somewhere in the distance, like…
Sunflowers and Sun: unexpected facts that will surprise
Sunflower is one of those plants that immediately evoke associations with summer, sun and endless yellow fields. No…
Why isn’t traffic light purple? Unexpected fact about color choices
It would seem that what could be simpler than a traffic light? It stands alone at an intersection,…
Yawning: surprising facts and scientific explanations
Yawning is a strange, slightly funny phenomenon that we all know from childhood. Yawning: surprising facts and scientific…