#1246 What is a smart bullet?

What is a smart bullet? A smart bullet is a projectile that is able to alter its trajectory after it has been fired. Smart bullets sound scary, but they could have benefits. A lot of deaths in warfare come from collateral damage. There are accidental shootings by the police as well. Smart bullets would be […]

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#1245 Why do we laugh?

Why do we laugh? Nobody knows for definite, but there are several theories. One of the theories is that we laugh as an evolved response to the passing of stress to show the rest of our herd that the danger has passed. One of the most interesting things about laughter is that it is not

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#1240 Why is an overdose fatal?

Why is an overdose fatal? It depends on the type of drug, but opioids, which are the most common form of drug, cause death because of a lack of oxygen. When we talk about an overdose, we are typically talking about someone who has taken too many of a particular type of drug. This could

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#1237 What is a pulsar?

What is a pulsar? A pulsar is a neutron star that rotates extremely rapidly and releases pulses of radiation, hence their name. Neutron stars are formed when stars much larger than our sun (a minimum of eight times larger) run out of fuel to burn. All stars begin by burning hydrogen and turning it into

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