>>438303you're confusing dull with blunted. a dull knife is still fairly sharp, it just requires more force to cut through tough objects like wood, making it more likely to slip. it will still slice through your skin without an issue, especially with the amount of force being applied to cut through wood.
>>438359>>438742it depends on the ambient temperature, but bare ground has a very high thermal mass. it's also touching all of the other bare ground around it, which has a high thermal mass. heat energy moves quickly through conduction. yes, the ground immediately beneath you will be warmer than the ground 10 feet away, but it will not radiate that heat back towards you, but rather it will heat the rest of the ground beneath it that is a lower temperature.
yes, hammocks do the same thing, which is why you need an underquilt if it's going to be cold/windy.
