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| # | Thing | Description | Topic | For | Against | Net | |
|---|---|---|---|---|---|---|---|
| 201 |  | Dome | Architectural element similar to the hollow upper half of a sphere; there are many types | Technology | 0 | 0 | 0 |
| 202 |  | Domestication | Selective breeding of plants and animals to serve humans | Technology | 0 | 0 | 0 |
| 203 |  | Door | Movable barrier that allows ingress and egress | Technology | 0 | 0 | 0 |
| 204 |  | Drainage | Removal of water from an area of land | Technology | 0 | 0 | 0 |
| 205 |  | Drilling | Cutting process that uses a drill bit to cut a circular hole into the workpiece | Technology | 0 | 0 | 0 |
| 206 |  | Driving | Operation of a vehicle | Technology | 0 | 0 | 0 |
| 207 |  | Dye | Soluble chemical substance or natural material which can impart color to other materials | Technology | 0 | 0 | 0 |
| 208 |  | Dynamite | Explosive made using nitroglycerin | Technology | 0 | 0 | 0 |
| 209 |  | ENIAC | First electronic general-purpose digital computer | Technology | 0 | 0 | 0 |
| 210 |  | Electric battery | Power supply with electrochemical cells | Technology | 0 | 0 | 0 |
| 211 |  | Electric generator | Device that converts other energy to electrical energy | Technology | 0 | 0 | 0 |
| 212 |  | Electric light | Device for producing light from electricity | Technology | 0 | 0 | 0 |
| 213 |  | Electric motor | Machine that converts electrical energy into mechanical energy | Technology | 0 | 0 | 0 |
| 214 |  | Electric power distribution | Final stage of electricity delivery to individual consumers in a power grid | Technology | 0 | 0 | 0 |
| 215 |  | Electric power transmission | Bulk movement of electrical energy | Technology | 0 | 0 | 0 |
| 216 |  | Electrical cable | Assembly of one or more wires running side by side or bundled | Technology | 0 | 0 | 0 |
| 217 |  | Electrical connector | Device used to join electrical conductors | Technology | 0 | 0 | 0 |
| 218 |  | Electrical engineering | Branch of engineering | Technology | 0 | 0 | 0 |
| 219 |  | Electrical grid | Interconnected network for delivering electricity to consumers | Technology | 0 | 0 | 0 |
| 220 |  | Electrical wiring | Electrical installation of cabling | Technology | 0 | 0 | 0 |
| 221 |  | Electricity generation | Process of generating electrical power | Technology | 0 | 0 | 0 |
| 222 |  | Electrocardiography | Examination of the heart's electrical activity | Technology | 0 | 0 | 0 |
| 223 |  | Electron microscope | Type of microscope with electrons as a source of illumination | Technology | 0 | 0 | 0 |
| 224 |  | Electronics | Branch of physics and electrical engineering | Technology | 0 | 0 | 0 |
| 225 |  | Elevator | Vertical transport machine | Technology | 0 | 0 | 0 |
| 226 |  | Mail sent using electronic means | Technology | 0 | 0 | 0 | |
| 227 |  | Embroidery | Art or handicraft of decorating fabric or other materials with needle and thread or yarn | Technology | 0 | 0 | 0 |
| 228 |  | Encryption | Process of converting plaintext to ciphertext | Technology | 0 | 0 | 0 |
| 229 |  | Endoscopy | Procedure used in medicine to look inside the body | Technology | 0 | 0 | 0 |
| 230 |  | Engine | Machine that converts one or more forms of energy into mechanical energy (of motion) | Technology | 0 | 0 | 0 |
| 231 |  | Engineering | Applied science and research | Technology | 0 | 0 | 0 |
| 232 |  | Ethernet | Open standard family of wired computer networking protocols | Technology | 0 | 0 | 0 |
| 233 |  | European Space Agency | European organisation dedicated to space exploration | Technology | 0 | 0 | 0 |
| 234 |  | Exploration of Mars | Technology | 0 | 0 | 0 | |
| 235 |  | Explosive | Substance that can explode | Technology | 0 | 0 | 0 |
| 236 |  | Extrusion | Process of pushing material through a die to create long symmetrical-shaped objects | Technology | 0 | 0 | 0 |
| 237 |  | Factory | Facility where goods are industrially made, or processed | Technology | 0 | 0 | 0 |
| 238 |  | Farm | Area of land used to produce food and crops | Technology | 0 | 0 | 0 |
| 239 |  | Fastener | Device that mechanically joins objects | Technology | 0 | 0 | 0 |
| 240 |  | Façade | Exterior part of a building, usually the front but not always | Technology | 0 | 0 | 0 |
| 241 |  | Felt | Textile made from condensed fibers | Technology | 0 | 0 | 0 |
| 242 |  | Ferry | Ship to carry people and goods on water | Technology | 0 | 0 | 0 |
| 243 |  | Fertilizer | Substance added to soil to enhance plant growth | Technology | 0 | 0 | 0 |
| 244 |  | Fiber | Natural or synthetic substance that is significantly longer than it is wide | Technology | 0 | 0 | 0 |
| 245 |  | Fighter aircraft | Military aircraft for air-to-air combat | Technology | 0 | 0 | 0 |
| 246 |  | File system | Computer filing system | Technology | 0 | 0 | 0 |
| 247 |  | Filling station | Facility that sells gasoline and diesel | Technology | 0 | 0 | 0 |
| 248 | Filter (signal processing) | Device for suppressing part of a signal | Technology | 0 | 0 | 0 | |
| 249 |  | Fine-art photography | Genre of photography | Technology | 0 | 0 | 0 |
| 250 |  | Firearm | Gun for an individual | Technology | 0 | 0 | 0 |
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