Podcast - The North Korean Electromagnetic Pulse Threat, Or Lack Thereof ? - @gbrumfiel and @ArmsControlWonk clearly had fun talking about EMPs. Can a nuclear weapon in space fired by North Korea knock off much of the world's electr...
5 hours ago
|My first camera!|
Higher numbers mean more restriction, and harder to get enough light in and lower numbers mean less restriction therefore lots of light can get in! In other words, Lower = LOTS of light!