With two outs and the bases loaded in the seventh, Chris Taylor crushed a fastball from Craig Stammen, sending a tracer over the left-field wall.
Muzzle flashes lit up the jungle, tracer bullets from anti-aircraft guns scouring the humid air.
Three chemicals will interact to form the color tracers — barium, strontium and cupric-oxide.
But for the tracer experiments, the metals are released in much lesser amounts.
The vapor tracers may be visible from New York to North Carolina and westward to Charlottesville, Virginia.
This map shows the projected visibility of the vapor tracers during the June 2 mission.
Trace A technician injects a patient with a radioactive glucose tracer before sliding her into the 6-foot-long RefleXion machine. 2.
Bullets whistled overhead; red tracers arced and disappeared.
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