Balsa wood is classified as a hard wood!
41
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Your brain is 80% water.
525
Indoor pollution is 10 times more toxic than outdoor pollution.
62
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42