Highlights. 1  Acute myocardial infarction is the medical name for a heart attack. 2  A number of different factors may increase your risk for a heart attack, including high blood pressure, high cholesterol, and diabetes.  Call 911 immediately if you believe you or someone you know may have had a heart attack.
The blue color of the sky is due to Rayleigh scattering. As light moves through the atmosphere, most of the longer wavelengths pass straight through. Little of the red, orange and yellow light is affected by the air. However, much of the shorter wavelength light is absorbed by the gas molecules.
Cloudy day, itâs a cloudy day. The sky is dark and the sunâs gone away. Cloudy day, itâs a cloudy day. The only color that we see is gray. When the clouds finally pass us by. The sun will come back to light the sky. But for now weâll have to sit and wait. For the clouds to part just like a gate. Cloudy day, itâs a cloudy day. The sky is dark and the sunâs gone away. Cloudy day, itâs a cloudy day. The only color that we see is gray. See more of our Weather Song Lyrics.