Questions with the keyword 'light'

• Is it actually dangerous to look directly at the sun, because I can stare at the sun for a while without hurting my by to Daren, Lynne, Phillip, Simon Comments: (No comments so far )
• When we close our eyes do we actually experience darkness or what? by to Daren, Lynne, Phillip, Simon Comments: (No comments so far )
• How do cameras work? by to Daren, Lynne, Phillip, Simon Comments: (No comments so far )
• what substance emits the greatest amount of light? by to Daren, Lynne, Phillip, Simon Comments: (No comments so far )