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| # | Thing | Description | Topic | For | Against | Net | |
|---|---|---|---|---|---|---|---|
| 251 |  | Fireplace | Device for firing solid fuels in buildings | Technology | 0 | 0 | 0 |
| 252 |  | Fireworks | Low explosive pyrotechnic devices for entertainment | Technology | 0 | 0 | 0 |
| 253 |  | Fishing vessel | Boat or ship used to catch fish | Technology | 0 | 0 | 0 |
| 254 |  | Fixed-wing aircraft | Heavier-than-air aircraft with fixed wings generating aerodynamic lift | Technology | 0 | 0 | 0 |
| 255 |  | Flat-panel display | Electronic display technology | Technology | 0 | 0 | 0 |
| 256 |  | Flood management | Methods for reducing detrimental effects of flood waters | Technology | 0 | 0 | 0 |
| 257 |  | Floor | Walking surface of a room | Technology | 0 | 0 | 0 |
| 258 |  | Forging | Metalworking process | Technology | 0 | 0 | 0 |
| 259 |  | Fortification | Military defensive construction | Technology | 0 | 0 | 0 |
| 260 |  | Fossil fuel | Fuel formed naturally from dead plants and animals | Technology | 0 | 0 | 0 |
| 261 |  | Foundation (engineering) | Lowest and supporting layer of a structure | Technology | 0 | 0 | 0 |
| 262 |  | Four-stroke engine | Internal combustion engine type | Technology | 0 | 0 | 0 |
| 263 |  | Freight transport | Physical process of transporting commodities and merchandise goods and cargo | Technology | 0 | 0 | 0 |
| 264 |  | Fuel | Material used to create heat and energy | Technology | 0 | 0 | 0 |
| 265 | Functional programming | Programming paradigm based on applying and composing functions | Technology | 0 | 0 | 0 | |
| 266 |  | Fuse (electrical) | Electrical safety device that provides overcurrent protection | Technology | 0 | 0 | 0 |
| 267 |  | Future | Time after the present | Technology | 0 | 0 | 0 |
| 268 |  | Galley | Ship mainly propelled by oars | Technology | 0 | 0 | 0 |
| 269 |  | Garden | Planned space for displaying plants and other forms of nature | Technology | 0 | 0 | 0 |
| 270 |  | Gardening | Practice of growing and cultivating plants | Technology | 0 | 0 | 0 |
| 271 |  | Gas-turbine engine | Type of continuous-flow turbine engine | Technology | 0 | 0 | 0 |
| 272 |  | Gasoline | Liquid fuel derived from petroleum | Technology | 0 | 0 | 0 |
| 273 |  | Gear | Rotating circular machine part with teeth that mesh with another toothed part | Technology | 0 | 0 | 0 |
| 274 |  | Gel electrophoresis | Method for separation and analysis of biomolecules | Technology | 0 | 0 | 0 |
| 275 |  | Genetic engineering | Manipulation of an organism's genome | Technology | 0 | 0 | 0 |
| 276 | | Genetically modified organism | Organism altered by genetic engineering | Technology | 0 | 0 | 0 |
| 277 |  | Geothermal power | Power generated by geothermal energy | Technology | 0 | 0 | 0 |
| 278 |  | Glass | Transparent non-crystalline solid material | Technology | 0 | 0 | 0 |
| 279 |  | Glasses | Form of vision aid | Technology | 0 | 0 | 0 |
| 280 |  | Glider (aircraft) | Aircraft designed for operation without an engine | Technology | 0 | 0 | 0 |
| 281 |  | Global Positioning System | American satellite-based radio navigation service | Technology | 0 | 0 | 0 |
| 282 |  | Golden Gate Bridge | Bridge in the San Francisco Bay Area | Technology | 0 | 0 | 0 |
| 283 |  | Granary | Storage building for grain | Technology | 0 | 0 | 0 |
| 284 | Gregorian calendar | Internationally accepted civil calendar | Technology | 0 | 0 | 0 | |
| 285 |  | Grenade | Small explosive weapon that typically is thrown by hand | Technology | 0 | 0 | 0 |
| 286 |  | Gun | Device that launches projectiles | Technology | 0 | 0 | 0 |
| 287 |  | Gunpowder | Type of firearm propellant | Technology | 0 | 0 | 0 |
| 288 |  | Gyroscope | Device for measuring or maintaining orientation | Technology | 0 | 0 | 0 |
| 289 |  | HTML | Markup language for documents | Technology | 0 | 0 | 0 |
| 290 |  | HTTP | Application layer protocol | Technology | 0 | 0 | 0 |
| 291 |  | Hammer | Tool | Technology | 0 | 0 | 0 |
| 292 |  | Hand spinning | Method of turning fiber into thread | Technology | 0 | 0 | 0 |
| 293 |  | Handgun | Short-barreled firearm designed to be operated with one hand | Technology | 0 | 0 | 0 |
| 294 |  | Harbor | Sheltered body of water for mooring | Technology | 0 | 0 | 0 |
| 295 |  | Hard disk drive | Electro-mechanical data storage device | Technology | 0 | 0 | 0 |
| 296 |  | Harrow (tool) | Agricultural tool | Technology | 0 | 0 | 0 |
| 297 |  | Harvest | Process of gathering mature crops from fields | Technology | 0 | 0 | 0 |
| 298 |  | Hay | Dried grass, legumes or other herbaceous plants used as animal fodder | Technology | 0 | 0 | 0 |
| 299 |  | Heat treating | Process of heating something to alter it | Technology | 0 | 0 | 0 |
| 300 |  | Heating, ventilation, and air conditioning | Technology of indoor and vehicular environmental comfort | Technology | 0 | 0 | 0 |
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