For this unique underground flight, Trifonov had to use a specially designed balloon, which was smaller than a usual hot air balloon and meant the pilot sat on two gas cylinders framed
by iron pipes rather than inside a basket.
Not exact matches
In contrast, Baltimore Gas and Electric was on track to replace its cast -
iron pipes in 140 years,
by around the year 2150.
Duke Energy of Ohio, which serves Cincinnati, had the best track record in the country, replacing 80 percent of its cast -
iron pipes through an aggressive program approved
by the Public Utility Commission of Ohio in 2001.
Edwards explored this concept through the case studies of St. Joseph, Louisiana, where efforts to fix infrastructure that transported brown water saturated with
iron, manganese, and lead were hindered
by local corruption; Washington, D.C., where a covered - up water crisis led to increased miscarriage risks, fetal deaths, and lead poisoning in thousands of children; and Flint, Michigan, where a switch to a new water source without adding the anticorrosive agent orthophosphate to the water to protect
pipes caused significant lead poisoning, an outbreak of the Legionella bacteria causing twelve deaths, and a breakdown of the water infrastructure.
Most lead measured from home taps is particulate lead ---- lead that's been released from the
pipe and bound
by iron, aluminum and other minerals.
Some are debarked
by an owner shoving an
iron pipe into the dog's throat to silence its barks of anguish; others are debarked
by a veterinarian.
Musicians too took notice: Schwitters imagined a score in which the tones would be produced
by «violin, drum, trombone, sewing machine, grandfather clock, steam of water, etc.,» 40 years before John Cage composed pieces using a watering can, a
iron pipe, a bottle of wine, a grand piano, five radios and an electric mixer.
Then they weaken the steel
by creating larger gaps between the
iron atoms that form the
pipe.
That requires the contractor to retrofit the system, principally
by excavating part of the system and replacing the PVC with
iron pipe.