Download IBM 340-FT Hard Reset File

39. Pennsylvania
> Tallest building: Comcast Center
> City: Philadelphia
> Building height: 974 ft.
> Year built: 2008

Mankind has always sought to rise above the clouds, but it was not until the late 19th century that the technology became available to make what we commonly call skyscrapers today possible.

6. Colorado
> Tallest building: Republic Plaza
> City: Denver
> Building height: 714 ft.
> Year built: 1984

48. Washington
> Tallest building: Columbia Center
> City: Seattle
> Building height: 967 ft.
> Year built: 1985

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All types of blasting caps in strengths through No. 8 cap should be rated at 1 ½ lbs. (1.5 lbs.) of explosives per 1,000 caps. For strengths higher than No. 8 cap, consult the manufacturer.

For quantity and distance purposes, detonating cord of 50 or 60 grains per foot should be calculated as equivalent to 9 lbs. of high explosives per 1,000 feet. Heavier or lighter core loads should be rated proportionately.