Questions with the keyword 'air'

• Hello! What actually are lasers? Are they just rays of light or molecules bending through the air to create light ? by roisinmillar to Mike, Pip, Tianfu, Tim, Tom Comments: (No comments so far )
• How Fast Does Bacteria Spread In The Air? by brumc001 to Tim Comments: (So far, one comment )
• how do lasers travel through a) air? and b) water? by confuddled213 to Mike, Pip, Tianfu, Tim, Tom Comments: (No comments so far )
• How can you move in space if there’s no air to displace? by 10kempstera to Mike, Pip, Tianfu, Tim, Tom Comments: (No comments so far )
• You mentioned on your profile that you use lasers to determine how fast a flow of air is travelling. How does that by xmali to Mike, Pip, Tianfu, Tim, Tom Comments: (No comments so far )