These can range from small back-pack mounted apparatus, to gigantic self-propelled machines with 50-meter-wide booms that can spray 10,000 liters of anti-weed agents in a single day. Recent ...

So weed enthusiasts should be able to fire up ... have been debating modifications to the law but have not reached a resolution. Here's what to know. What is 420 and how did April 20 become ...

At low energy resolution it provides qualitative and quantitative information on the elements present whereas at high energy resolution it gives information on the chemical state and bonding of those ...