Mail sent to either of a user's addresses arrives in their same inbox. 1  Sign up for Google services using your primary domain. 2  Add a secondary domain, if you you want to share your Google Apps services with another domain. 3  Add users to your Google accounts.  Add a domain alias to your primary or secondary domains.
The purpose of the Number Rods is to visualize the quantities 1-10: to learn to count and to associate the names with the quantities. There are ten rods varying in length from 10 centimeters to 1 meter. Each rod is divided into sections equal to the shortest rod.
Rod cell. Rod cells, or rods, are photoreceptor cells in the retina of the eye that can function in less intense light than the other type of visual photoreceptor, cone cells. Rods are concentrated at the outer edges of the retina and are used in peripheral vision. On average, there are approximately 90 million rod cells in the human retina. More sensitive than cone cells, rod cells are almost entirely responsible for night vision.