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41U.S. Air Force Thunderbirds — Infobox Military Unit unit name= Thunderbirds 57th Wing United States Air Force caption=The Thunderbirds lined up at Nellis AFB, Las Vegas, Nevada dates= June 1, 1953 to the Present country= allegiance= branch= type= role= Aerobatic display team… …
42Interstate 45 — Route information Maintained by …
43Tetsuzō Iwamoto — Tetsuzo Iwamoto in 1945 Nickname Zero Fighter Ace Kotetsu Tiger Tetsu …
44Sishen–Saldanha railway line — Ore Export Line Overview Type Iron ore freight Locale Western Northern Cape, South Africa Termini Sishen, Northern Cape Saldanha …
45Unmanned combat air vehicle — A MQ 9 Reaper during a training mission An unmanned combat air vehicle (UCAV) or combat drone is an unmanned aerial vehicle (UAV) that is designed to deliver weapons (attack targets) without an onboard pilot. Currently operational UCAVs are under …
46Lincoln J. Beachey — Born March 3, 1887(1887 03 03) San Francisco, California Died March 14, 1915( …
47Dipole antenna — A schematic of a half wave dipole antenna connected to an unbalanced coaxial cable. Better practice is to connect the balanced dipole to the unbalanced line with a balun. A dipole antenna is a radio antenna that can be made of a simple wire, with …
48Radio direction finder — Civil Air Patrol members practice using a handheld radio direction finder to locate an emergency locator transmitter …
49TerraServer-USA — is a free online repository of public domain aerial imagery and satellite imagery, formerly known as Microsoft TerraServer. Though it was online as early as December 1997, the site was formally unveiled June 24, 1998 as part of an 18 month… …
50Mast radiator — A typical mast radiator in Chapel Hill, North Carolina. The high RF voltage on the mast can deliver a dangerous electrical shock to anyone touching it, so the base is surrounded by a fence to prevent access …
