#403 When was corrugated cardboard first used?
When was corrugated cardboard first used? Corrugated cardboard was first used as a liner for top hats. Corrugated cardboard is commonly used for making cardboard boxes and if you have…
When was corrugated cardboard first used? Corrugated cardboard was first used as a liner for top hats. Corrugated cardboard is commonly used for making cardboard boxes and if you have…
What is the tallest a mountain can be? It depends on the strength of the surface gravity, the amount of volcanic activity, the movement of tectonic plates, and the weather.…
By Pablo Picasso – wordpress, PD-US, https://en.wikipedia.org/w/index.php?curid=38782663 What is cubism? Cubism is an art form where the artist tries to show an object from multiple viewpoints at the same time.…
Why do we get a headache when we are dehydrated? You get a headache when you are dehydrated because your brain shrinks and pulls away from the sides of your…
When did people first start using locks and keys? Keys and locks were first used about 6,000 years ago. The earliest lock that has been found so far was 6,000…
Can you cure male-pattern baldness? In male-pattern baldness, the hair follicles are still present on the scalp, they are simply dormant. What is male-pattern baldness? It is hair loss that…
How long does a 747’s runway need to be? A Boeing 747 airplane needs a runway that is at least 2,300 m long to land and over 3000 m to…
How does caffeine stop you from feeling sleepy? Caffeine stops you from feeling sleepy by blocking the action of adenosine on its receptors. So, why do we get sleepy? A…
Why are rabbit ears so long? A rabbit has big ears to cool itself down, not just to hear predators. Rabbits are herbivores and are obviously preyed upon by various…
Why does drinking milk help after eating spicy food? Milk helps after eating spicy food such as chili because it contains something called casein. When you eat spicy food, the…