Is the sun a yellow dwarf star?

Is the sun a yellow dwarf star?

The sun is classified as a G-type main-sequence star, or G dwarf star, or more imprecisely, a yellow dwarf. Actually, the sun — like other G-type stars — is white, but appears yellow through Earth’s atmosphere. Stars generally get bigger as they grow older.

Why are elements different from each other?

The atoms of different elements are different from each other because they have different numbers of protons. The graphic below illustrates this point by showing the atoms of two elements in the containers of oxygen and hydrogen.

What is the meaning of once bitten twice shy?

If somebody is said to be once bitten twice shy, it means that someone who has been hurt or who has had something go wrong will be far more careful the next time. It’s something that you say when you have had an unpleasant experience and are going to be more careful to avoid a similar experience in the future.

How much does a baby blue whale weigh at birth?

After about a year inside its mother’s womb, a baby blue whale emerges weighing up to 3 tons (2.7 metric tons) and stretching to 25 feet (8 meters). It gorges on nothing but mother’s milk and gains about 200 pounds (91 kilograms) every day for its first year.

Which state has a law system based on the Napoleonic Code?

Unlike the other 49 states – civil law in Louisiana is based on the French Napoleonic Code. And, like most things in Louisiana, this system of laws is unique to the United States and has been influenced by different legal traditions including those of Spain and ancient Rome.

Why is Greece first in the Olympic parade?

Traditionally (starting at the 1928 Summer Olympics), Greece enters first, because of its historical status as the progenitor of the Olympics, while the host nation marches last. In the 2004 Summer Olympics in Athens, the Greek flag led the parade, while the Greek team marched in last, as the host nation.

What makes the sky blue?

A clear cloudless day-time sky is blue because molecules in the air scatter blue light from the sun more than they scatter red light. When we look towards the sun at sunset, we see red and orange colours because the blue light has been scattered out and away from the line of sight.

How do transition lenses work?

Transitions lenses contain special patented photochromic dyes that cause the lens to activate, or darken, when exposed to ultraviolet rays from sunlight. When the UV light diminishes, the lenses fade back. As light conditions change, the level of tint adjusts, offering the right tint at the right time.