What Are the Polar & Equatorial Diameters of the Earth?

Answer When satellites and rockets were first sent into space, they gave scientists a unique opportunity to start looking at the Earth in a different way. When humans were earthbound, it was impossible to... Read More »

Top Q&A For: What Are the Polar & Equatorial Diameters of th...

How do you make an equatorial sundial?

An equatorial sundial sits at an angle equal to the latitude of its location so it is parallel to the Earth's equator. The gnomon is the part of the sundial that casts a shadow on the front or back... Read More »

If my prescription is for the diameter 14.2 can I use lenses with other diameters?

You put way too much importance on that diameter. The Dr. didn't choose a specific diameter , it just happens to be the diameter of the brand that was prescribed and happens to be a good fit on you... Read More »

How to Build Your Own Solar System With Planet Diameters?

Model-making provides an exciting activity for people of all ages and can help teach younger crafters key facts about the solar system. Building a model of the solar system can help teach such fact... Read More »

Is hydrogen sulfide polar or non-polar?

Hydrogen sulfide, or H2S, is polar because sulfur is more electronegative than hydrogen. The uneven distribution of electrons in the molecule causes an electrical field. One end of the molecule has... Read More »