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Is F-15 better than F-22?

Is F-15 better than F-22? Baugher notes that the F-22 has a top speed of Mach 2.2 slightly slower than the F-15. But the F-22 cruises at Mach 1.6. It carries four AIM-120 and four AIM-9 […]

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What is a phase grating?

What is a phase grating? 1. Introduction. Volume Phase Gratings (VPG) work much like conventional surface relief reflection gratings, except in transmission. They are periodic phase structures, whose fundamental purpose is to diffract different wavelengths of […]

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Is PSAT harder than SAT?

Is PSAT harder than SAT? The PSAT test is slightly easier than the SAT test. The PSAT test is meant to serve as practice for the SAT test. When you break down how much time you […]

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What does CBTC do?

What does CBTC do? Communication-based train control (CBTC) is a signalling system that uses communication between onboard and trackside equipment for train operation and control. CBTC has been widely adopted in recent years on monorails, commuter […]

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What is marine grade diesel?

What is marine grade diesel? Marine Diesel Oil (MDO) is a type of fuel oil and is a blend of gasoil and heavy fuel oil, with more gasoil than intermediate fuel oil used in the maritime […]

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Do any professionals use Final Cut Pro?

Do any professionals use Final Cut Pro? Final Cut Pro is a wonderful application used by many YouTubers, education and small business content creators worldwide. We know why it is successful. It is liberating, efficient and […]

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