What is the smallest weapon that can disable/destroy a tank?
How do anti-air weapons track their target?
How much weight is necessary to set off a mine?
From Wiki:
A land mine can be triggered by a number of things including pressure, movement, sound, magnetism and vibration. Anti-personnel mines commonly use the pressure of a person's foot as a trigger, but tripwires are also frequently employed. Most modern anti-vehicle mines use a magnetic trigger to enable it to detonate even if the tires or tracks did not touch it. Advanced mines are able to sense the difference between friendly and enemy types of vehicles by way of a built-in signature catalogue. This will theoretically enable friendly forces to use the mined area while denying the enemy access.
Many mines combine the main trigger with a touch or tilt trigger to prevent enemy engineers from defusing it. Land mine designs tend to use as little metal as possible to make searching with a metal detector more difficult; land mines made mostly of plastic have the added advantage of being very inexpensive.
Some types of modern mines are designed to self-destruct, or chemically render themselves inert after a period of weeks or months to reduce the likelihood of civilian casualties at the conflict's end. However, these self-destruct mechanisms are not absolutely reliable, and most land mines laid historically are not equipped in this manner.I have read that they use trained rats in Africa to de-mine areas, since they are too small to trigger them. Dogs are also used, but they are not as effective as rats, because they trigger the mines, accidentally, destroying an expensively trained dog.
So we're narrowing that one down a little.
An anti-personell mine can break the tracks on a tank, if it rolls over it, disabling it for a short time.
My favorite land mines for anti-personell use have little helicopter blades on the bottom. When they are tripped, they lift into the air, about a three or four feet, before they detonate, making a more serious injury.
This relates more to one of Litigious' areas of interest. Where is he?