Why does a globe tilt




















A mild, non-abrasive product is recommended for difficult marks. Do not use industrial or even household cleaners that contain alcohol or any solvent. Some acrylic and special purpose globes can be marked with a grease pencil or with a dry erase marker, and safely wiped clean with a soft cloth. The globe is lit from the inside by a 25W electric light bulb.

The cord typically comes out of the southern axis and needs to be plugged into an electrical outlet. To allow light to pass through the globe ball, the sphere is usually made of plastic, sometimes covered with paper gores. Though it is a diminishing craft, some globes still come with a glass or crystal sphere. Replacement bulbs can be found at any hardware or lighting store. Some illuminated globes use a 15 watt up to 25 watt candelabra light bulb and others require a standard light bulb.

Please follow these guidelines: do not use more use more than a 15 or 25 watt bulb for a 12 globe, a 40 watt bulb for a 20 globe, or a 75 watt bulb for a 32 globe. By touching any part of the meridian ring with your fingertip, you can control three light levels. For help dating your globe ball, go to the "History of Globes" section of our web site. Contact them at www. More questions? Can I spin this globe in any direction?

How are globe measured? How do I know how big a 12" globe is? How do you find a place on a globe? How do you look up a place based on latitude and longitude? What's the difference between the beige and blue colored globes? Are your Antique Ocean globes up to date?

What is the difference between a Political and a Physical globe? What is that little round dial at the North Pole? Why do some globes have a metal ring or semi-ring around them? Which place names are used on our reference globes? How many place names are on this globe? Tell me more about the raised relief feature available on some globes. Why does my globe have a figure 8 in the Pacific Ocean? Why a globe instead of an atlas? How current are your globes? How often are the globes updated?

How do you clean a globe? How does the illumination work on illuminated models? Where can you buy a replacement light bulb for an illuminated globe? Scientists have taken a crack at answering that question. This time in cosmic history is still a mystery to us but we do have some ideas about what went on.

We know that the birth of the Sun created a new source of gravity in the young Solar System. The tidal forces between the young sun and the rest of the nebula the Sun was born from created further instability in the gases and dust left in the nebula. It is a bit lop-sided. During part of the year, Earth is closer to the Sun than at other times.

However, in the Northern Hemisphere, we are having winter when Earth is closest to the Sun and summer when it is farthest away! Compared with how far away the Sun is, this change in Earth's distance throughout the year does not make much difference to our weather. Earth's axis is an imaginary pole going right through the center of Earth from "top" to "bottom. That is why we have day and night, and why every part of Earth's surface gets some of each.

Long, long ago, when Earth was young, it is thought that something big hit Earth and knocked it off-kilter. So instead of rotating with its axis straight up and down, it leans over a bit. By the way, that big thing that hit Earth is called Theia.



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