In the year 0, the Earth was populated by around 300 million people; 1000 years later, the world’s population had grown by 10 million, but after the Middle Ages, growth accelerated. In 1500, the number was 500 million and in 1800 it was one billion. In 2007, there were approximately 5.8 billion people on earth and in 2009 we had reached 6.5 billion.
How much blood can a budgie lose?
A normal budgie can only manage to lose 10 drops of blood before it becomes life-threatening.
How long do the pine cones on a pine tree take to mature?
The cones of a pine tree take 3 years to mature, which is the longest for any species of pine.
What was Easter originally?
Passover was originally an ancient Israelite festival from nomadic times, celebrating spring and the fertility of cattle.
What is osteology?
Osteology – has nothing to do with cheese, it is the scientific study of bones, a sub-discipline of anthropology and archaeology.
How does an American football field measure?
An American football field is 120 yards long and 53.5 yards wide. The somewhat odd width measurement is due to the fact that when they decided in the 40s that the field should be wider to avoid injuries, they couldn’t make it wider than exactly 53.5 yards because Harvard University’s field is only that wide.
What was Easter week called in the past?
In the past, Easter week has been called “dimming week” because church bells weren’t rung, but wooden bells were used instead.
First-time mothers
The average age of women giving birth for the first time has increased from 23.1 to 28.1 years between 1961 and 2001. If this can be considered a continuous linear increase, the average age of women giving birth for the first time in 2401 will have increased to 78.1 years.
How thick is the atmosphere?
The atmosphere is over 1000 km thick, but it is thinning fast. When you fly at an altitude of about 10 kilometers, you have just over 75% of the atmosphere’s mass below you.
