dm. Designated Marksman. military marksman role in a U.S. infantry squad. The DM's role is to supply rapid accurate fire on enemy targets at ranges up to 870 yds with a highly-accurate semi-automatic rifle equipped with a telescopic sight.he DM's role is to supply rapid accurate fire on enemy targets at ranges up to 870 yds with a highly-accurate semi-automatic rifle equipped with a telescopic sight.
The average person is awake for about 14 to 16 hours per day. Most could extend that to about 20 hours if they were to stay up later; up to 40 hours is easy once a person gets beyond the 24 hour mark; longer than 60 hours (staying awake straight through two nights and three days) is rare, but doable; the record is 264 hours or 11 days straight. Hannah Griffiths.
1. Sleeping. A good nightâs sleep is vital for every human being to survive. Given that an average a person sleeps for 8 hours in a day, that means that an average person will sleep for 229,961 hours in their lifetime or basically one third of their life.Thatâs precious time which could have been spent watching Die Hard 105,325 times.. Sleeping. A good nightâs sleep is vital for every human being to survive. Given that an average a person sleeps for 8 hours in a day, that means that an average person will sleep for 229,961 hours in their lifetime or basically one third of their life.