To support the clan structure and to receive the support of the clan, the Hmong are concentrated in geographic locations throughout the country, with the largest being in the St. Paul/Minneapolis area of Minnesota.o support the clan structure and to receive the support of the clan, the Hmong are concentrated in geographic locations throughout the country, with the largest being in the St. Paul/Minneapolis area of Minnesota.
Report Abuse. You should place the projector at less 10 to 12 feet away. Keep in mind that projectors needs to be in a dark room to be effective. The lamps on a projector only last about 2,000 hours and the cost of replacing them starts at $50 to around $300.For a 120 screen you should also seat back around 10 feet away, you what to see the whole screen without moving your eyes.Pick up a copy of Home Theater Magazine May issue, it list just about every projector in the market today.or a 120 screen you should also seat back around 10 feet away, you what to see the whole screen without moving your eyes. Pick up a copy of Home Theater Magazine May issue, it list just about every projector in the market today.
The mathematical calculation of this effect is called âthrow ratio.â Technically speaking, âThrow ratioâ is an equation that explains the distance from projector to screen compared to the screen size. For example, a standard projector might have a 1.5:1 throw ratio. So, to get a 60-inch image; the projector would have to be 7.5 feet back from the screen. Or, approximately 1.5â back for every 1â of screen. Any projector will have this ratio listed in the general specifications.