Where do blue stones come from?

Where do blue stones come from?

According to the established wisdom for some 90 years, many of the smaller rocks making up Stonehenge come from the Preseli Hills in Pembrokeshire, Wales. In 1923, geologist Herbert Henry Thomas first identified an outcrop known as Carn Meini as the source of the spotted dolerite bluestones used to build Stonehenge.

Why do you vote on Tuesday?

In 1845, the United States was largely an agrarian society. Farmers often needed a full day to travel by horse-drawn vehicles to the county seat to vote. Tuesday was established as election day because it did not interfere with the Biblical Sabbath or with market day, which was on Wednesday in many towns.

Why does the moon appear to change shape?

The Moon appears to change shape because we see different amounts of the lit part as the Moon orbits Earth. When the Moon is between Earth and the Sun, the lit side is hidden from us. As it moves around Earth, more and more of the lit side comes into view.

How much gravity does the moon have compared to earth?

The gravity on the Moon is about 17% what it is on the Earth. So if you weigh 200 pounds on Earth, you will weigh 34 pounds on the Moon.

How many rooms are there in Buckingham Palace?

Buckingham Palace has 775 rooms. These include 19 State rooms, 52 Royal and guest bedrooms, 188 staff bedrooms, 92 offices and 78 bathrooms. Buckingham Palace is 108 metres long across the front, 120 metres deep (including the quadrangle) and 24 metres high.

What team did Michael Jordan play for in college?

After a three-season career at the University of North Carolina at Chapel Hill, where he was a member of the Tar Heels’ national championship team in 1982, Jordan joined the NBA’s Chicago Bulls in 1984.

What determines the pitch of the sound?

Since pitch is such a close proxy for frequency, it is almost entirely determined by how quickly the sound wave is making the air vibrate and has almost nothing to do with the intensity, or amplitude, of the wave.

Are most cranial nerves paired?

The twelve pairs of cranial nerves are continuous with the brain and are numbered from anterior to posterior, according to their attachments to the brain. CN-I is attached to the cerebral hemispheres. CN-II is attached to the central cerebrum via the optic chiasma (hypothalamus), CN-III and IV to the midbrain.