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2. Frequency-resolved optical gating - Wikipedia

   en.wikipedia.org/wiki/Frequency-resolved_optical...

   The FROG spectrogram (usually called a FROG trace) is a graph of intensity as a function of frequency and delay . The signal field from the nonlinear interaction is easier to express in the time domain, however, so the typical expression for the FROG trace includes a Fourier transform.

3. Double-blind frequency-resolved optical gating - Wikipedia

   en.wikipedia.org/wiki/Double-blind_frequency...

   Schematic for blind FROG implemented in polarization-gate (PG) geometry. If Pulse #2 is equal to Pulse #1, this is the PG FROG beam geometry, and if Pulse #2 is known, this is the PG XFROG beam geometry. Double-blind frequency-resolved optical gating (double-blind FROG) is a method for simultaneously measuring two unknown ultrashort laser pulses.

4. Surface wave detection by animals - Wikipedia

   en.wikipedia.org/wiki/Surface_wave_detection_by...

   Alternatively, a small rod a few millimeters in diameter is dipped briefly a few centimeters into the water. Either setup can be moved around the tank to deliver stimuli at various locations. The loudspeaker setup offers the advantage that stimuli can be precisely controlled to mimic natural stimuli or to test certain wave properties.

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6. News, Politics, Sports, Mail & Latest Headlines - AOL.com

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   Discover the latest breaking news in the U.S. and around the world — politics, weather, entertainment, lifestyle, finance, sports and much more.

7. Pithing - Wikipedia

   en.wikipedia.org/wiki/Pithing

   Pithing / ˈ p ɪ θ ɪ ŋ / is a technique used to immobilize or kill an animal by inserting a needle or metal rod into its brain.. It is regarded [by whom?] as a humane means of immobilizing small animals being observed in experiments, and while once common in commercial slaughtering is no longer practiced in some developed countries on animals intended for the human food supply due to the ...

8. Magnetic levitation - Wikipedia

   en.wikipedia.org/wiki/Magnetic_levitation

   A live frog levitates inside a 32 mm diameter vertical bore of a Bitter solenoid in a magnetic field of about 16 teslas A substance that is diamagnetic repels a magnetic field. All materials have diamagnetic properties, but the effect is very weak, and is usually overcome by the object's paramagnetic or ferromagnetic properties, which act in ...

9. The 12 best gifts for men who love to fish

   www.aol.com/lifestyle/best-gifts-for-people-who...

   This one from Aftco is flexible and features four slide-in compartments for his plastic tackle boxes, ideal for the organized fisher who wants to bring a beefy setup to the lake. $120 at Aftco Amazon