Congress passed the Achieving a Better Life Experience Act on the final hour of the final day of Congress in December, creating a new type of tax-advantaged account called an ABLE account or a 529A. The hope is that ABLE accounts will help level the financial playing field for families raising kids with disabilities.
Since there are 360 degrees in a circle, this angle is about is about 1/7930 of the circumference of the circle. And the circle in question, the earth, has an average circumference of 40,041,470 meters. Dividing by 7930 results in 5048.88 meters, or a little over 5 kilometers. Remember, however, that this is based on an assumed height of 2 meters, which is very tall for a human. A shorter person would not be able to see as far; a taller person could see farther. But there are diminishing returns. For example, a 4 meter-tall person can't see twice as far as a 2-meter-tall person, but a 1-meter-tall person can see more than half as far as a 2-meter-tall person. Or...
If you were looking with the eye alone, how far away in space would our planet Earth still be visible? Here is Earth from 900 million miles away, from the vantage point of the rings of Saturn. Image via the Cassini spacecraft, which has been orbiting Saturn since 2004. This image was acquired by Cassini on July 19, 2013.