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2. Electrofishing - Wikipedia

   en.wikipedia.org/wiki/Electrofishing

   The effectiveness of electrofishing is influenced by a variety of biological, technical, logistical, and environmental factors. The catch is often selectively biased as to fish size and species composition. When using pulsed DC for fishing, the pulse rate and the intensity of the electric field strongly influence the size and nature of the catch.

3. Standard electrode potential (data page) - Wikipedia

   en.wikipedia.org/wiki/Standard_electrode...

   The data below tabulates standard electrode potentials (E°), in volts relative to the standard hydrogen electrode (SHE), at: Temperature 298.15 K (25.00 °C; 77.00 °F); Effective concentration (activity) 1 mol/L for each aqueous or amalgamated (mercury-alloyed) species; Unit activity for each solvent and pure solid or liquid species; and

4. Line focus principle - Wikipedia

   en.wikipedia.org/wiki/Line_Focus_Principle

   The cathode is negatively charged and consists of a focusing cup made of nickel and two filaments made of tungsten. The filament is a coil of tungsten of a specified size (usual large and small). When current passes through the wire, heat is produced and causes the filament to release or burn off electrons. This is known as thermionic emission ...

5. Tungsten - Wikipedia

   en.wikipedia.org/wiki/Tungsten

   Tungsten electrode used in a gas tungsten arc welding torch Tungsten filament is used in incandescent lightbulbs, where it is heated until it glows Because of its conductive properties and relative chemical inertness, tungsten is also used in electrodes , and in the emitter tips in electron-beam instruments that use field emission guns , such ...

6. Galvanic series - Wikipedia

   en.wikipedia.org/wiki/Galvanic_series

   The difference can be measured as a difference in voltage potential: the less noble metal is the one with a lower (that is, more negative) electrode potential than the nobler one, and will function as the anode (electron or anion attractor) within the electrolyte device functioning as described above (a galvanic cell).

7. Fishing reel - Wikipedia

   en.wikipedia.org/wiki/Fishing_reel

   Parts of a spinning reel: 1: Pick up or bail 2: Reel seat 3: Reel foot 4: Handle 5: Support arm 6: Anti-reverse lever 7: Skirted spool 8: Fishing line 9: Drag adjustment knob A fishing reel is a hand- cranked reel used in angling to wind and stow fishing line , [ 1 ] typically mounted onto a fishing rod , but may also be used on compound bows ...