Leaderboard
727 things · 153 votes cast · add yours
All | Arts | Biology and health sciences | Everyday life | Geography | History | Mathematics | People | Philosophy and religion | Physical sciences | Society and social sciences | Technology
| # | Thing | Description | Topic | For | Against | Net | |
|---|---|---|---|---|---|---|---|
| 301 |  | Helicopter | Type of rotorcraft | Technology | 0 | 0 | 0 |
| 302 |  | Helmet | Protective headwear | Technology | 0 | 0 | 0 |
| 303 |  | High-speed rail | Fastest rail-based transport systems | Technology | 0 | 0 | 0 |
| 304 |  | Highway | Public road or other public way on land | Technology | 0 | 0 | 0 |
| 305 |  | Hoe (tool) | Agricultural tool | Technology | 0 | 0 | 0 |
| 306 |  | Holography | Recording to reproduce a three-dimensional light field | Technology | 0 | 0 | 0 |
| 307 |  | Home appliance | Machine for household uses | Technology | 0 | 0 | 0 |
| 308 |  | Hoover Dam | Dam in Nevada and Arizona, US | Technology | 0 | 0 | 0 |
| 309 |  | Horses in warfare | Use of equines in combat | Technology | 0 | 0 | 0 |
| 310 |  | Horticulture | Small-scale cultivation of plants | Technology | 0 | 0 | 0 |
| 311 |  | Hot air balloon | Lighter-than-air aircraft | Technology | 0 | 0 | 0 |
| 312 |  | Hovercraft | Air cushion vehicle | Technology | 0 | 0 | 0 |
| 313 |  | Hubble Space Telescope | NASA/ESA space telescope launched in 1990 | Technology | 0 | 0 | 0 |
| 314 |  | Hydroelectricity | Electricity generated by hydropower | Technology | 0 | 0 | 0 |
| 315 |  | Hydropower | Power generation via movement of water | Technology | 0 | 0 | 0 |
| 316 |  | IPhone | Line of smartphones by Apple | Technology | 0 | 0 | 0 |
| 317 |  | Image | Visual artifact that depicts or records perception | Technology | 0 | 0 | 0 |
| 318 |  | Image scanner | Device that optically scans images, printed text | Technology | 0 | 0 | 0 |
| 319 |  | Improvised explosive device | Unconventionally produced bomb | Technology | 0 | 0 | 0 |
| 320 |  | Incandescent light bulb | Electric light bulb with a resistively heated wire filament | Technology | 0 | 0 | 0 |
| 321 |  | Inclined plane | Tilted flat supporting surface | Technology | 0 | 0 | 0 |
| 322 |  | Inductor | Passive two-terminal electrical component that stores energy in its magnetic field | Technology | 0 | 0 | 0 |
| 323 |  | Industrial engineering | Branch of engineering which deals with the optimization of complex processes or systems | Technology | 0 | 0 | 0 |
| 324 |  | Industrial robot | Robot used in manufacturing | Technology | 0 | 0 | 0 |
| 325 |  | Information technology | Computer-based technologies | Technology | 0 | 0 | 0 |
| 326 |  | Infrastructure | Facilities and systems serving society | Technology | 0 | 0 | 0 |
| 327 |  | Ink | Liquid or paste that contains pigments or dyes | Technology | 0 | 0 | 0 |
| 328 | Instrumentation | Measuring instruments which monitor and control a process | Technology | 0 | 0 | 0 | |
| 329 |  | Integrated circuit | Electronic circuit formed on a small, flat piece of semiconductor material | Technology | 0 | 0 | 0 |
| 330 |  | Intensive farming | Branch of agriculture | Technology | 0 | 0 | 0 |
| 331 |  | Interchangeable parts | Practically identical components | Technology | 0 | 0 | 0 |
| 332 |  | Interferometry | Measurement method using interference of waves | Technology | 0 | 0 | 0 |
| 333 |  | Internal combustion engine | Engine in which fuel combusts with an oxidizer | Technology | 0 | 0 | 0 |
| 334 |  | International Space Station | Modular space station in low Earth orbit | Technology | 0 | 0 | 0 |
| 335 |  | Internet | Global system of connected computer networks | Technology | 0 | 0 | 0 |
| 336 | Internet protocol suite | Framework for communication protocols used in IP networking | Technology | 0 | 0 | 0 | |
| 337 |  | Invention | Novel device, material or technical process | Technology | 0 | 0 | 0 |
| 338 |  | Ironing | Process of removing wrinkles from fabric | Technology | 0 | 0 | 0 |
| 339 |  | Irrigation | Agricultural artificial application of water to land | Technology | 0 | 0 | 0 |
| 340 |  | Irrigation sprinkler | Method of irrigating lawns and crops | Technology | 0 | 0 | 0 |
| 341 | Islamic calendar | Lunar calendar used by most Muslims | Technology | 0 | 0 | 0 | |
| 342 |  | Itaipu Dam | Dam along the Brazil–Paraguay border | Technology | 0 | 0 | 0 |
| 343 | Java (programming language) | Object-oriented programming language | Technology | 0 | 0 | 0 | |
| 344 |  | JavaScript | High-level programming language | Technology | 0 | 0 | 0 |
| 345 |  | Jet aircraft | Aircraft class powered by jet propulsion engines | Technology | 0 | 0 | 0 |
| 346 |  | Jet engine | Aircraft engine that produces thrust by emitting a jet of gas | Technology | 0 | 0 | 0 |
| 347 |  | Julian calendar | Solar calendar | Technology | 0 | 0 | 0 |
| 348 |  | Katana | Samurai sword | Technology | 0 | 0 | 0 |
| 349 | Kerosene | Combustible hydrocarbon liquid | Technology | 0 | 0 | 0 | |
| 350 |  | Knife | Tool or weapon with a cutting edge or blade | Technology | 0 | 0 | 0 |
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