Derby Day is around the corner, and with it comes big hats, horses with funny names, and bourbon. Continue reading
Derby Day is around the corner, and with it comes big hats, horses with funny names, and bourbon. Continue reading
This useful link provides you with a general set of lab safety rules for lab activities and teacher demonstrations that can easily be adapted to your classroom.
When you gaze up in the night sky, some stars will be very bright while other stars are barely visible to the unaided eye. With the aid of binoculars, you may be able to observe different colours in the stars. The brightness and colour of a star depends on three factors: temperature, distance, and size.
There are two measures of how bright a star appears:
We know that the apparent magnitude of the Sun is the brightest at –26.8. However, when using the absolute magnitude scale, the Sun would be barely visible to the naked eye, with a reading of 4.8.