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10,033 things · 1,747 votes cast · cast a vote
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 | Up/Down/Net | Score ▼ | |
|---|---|---|---|---|---|---|
| 651 |  | Thermometer | Device to measure temperature | Technology | +1 / -0 / +1 | 0.523810 |
| 652 |  | History of aviation | History | +1 / -0 / +1 | 0.523810 | |
| 653 |  | Power station | Facility generating electric power | Technology | +1 / -0 / +1 | 0.523810 |
| 654 |  | Venus de Milo | Ancient Greek marble statue of Aphrodite | Arts | +1 / -0 / +1 | 0.523810 |
| 655 |  | Mandarin Chinese | Branch of the Chinese language family | Society and social sciences | +1 / -0 / +1 | 0.523810 |
| 656 |  | Ordinary differential equation | Differential equation containing derivatives with respect to only one variable | Mathematics | +1 / -0 / +1 | 0.523810 |
| 657 |  | Copper | Chemical element with atomic number 29 (Cu) | Physical sciences | +1 / -0 / +1 | 0.523810 |
| 658 |  | Arch | Curved structure that spans a space and may support a load | Technology | +1 / -0 / +1 | 0.523810 |
| 659 |  | Old World flycatcher | Family of birds | Biology and health sciences | +1 / -0 / +1 | 0.523810 |
| 660 |  | History of India (1947–present) | History | +1 / -0 / +1 | 0.523810 | |
| 661 |  | Wood | Fibrous material from trees or other plants | Technology | +1 / -0 / +1 | 0.523810 |
| 662 |  | Paris | Capital of France | Geography | +1 / -0 / +1 | 0.523810 |
| 663 |  | Li Bai | Chinese poet (701–762) | People | +1 / -0 / +1 | 0.523810 |
| 664 |  | Pedagogy | Theory and practice of education | Society and social sciences | +1 / -0 / +1 | 0.523810 |
| 665 |  | Alkaloid | Class of naturally occurring chemical compounds | Biology and health sciences | +1 / -0 / +1 | 0.523810 |
| 666 |  | Francis Ford Coppola | American filmmaker (born 1939) | People | +1 / -0 / +1 | 0.523810 |
| 667 |  | Cosmological constant | Value representing energy density of space | Physical sciences | +1 / -0 / +1 | 0.523810 |
| 668 |  | Greenland | Autonomous territory of Denmark | Geography | +1 / -0 / +1 | 0.523810 |
| 669 |  | Entropy | Property of a thermodynamic system | Physical sciences | +1 / -0 / +1 | 0.523810 |
| 670 |  | Dennis Ritchie | American computer scientist known for Unix (1941–2011) | People | +1 / -0 / +1 | 0.523810 |
| 671 |  | Star cluster | Group of stars | Physical sciences | +1 / -0 / +1 | 0.523810 |
| 672 |  | Sesame Street | American children's television show | Arts | +1 / -0 / +1 | 0.523810 |
| 673 | History of economic thought | Study of the development of economic thought | History | +1 / -0 / +1 | 0.523810 | |
| 674 |  | Athena | Ancient Greek goddess | Philosophy and religion | +1 / -0 / +1 | 0.523810 |
| 675 |  | Maria Theresa | Habsburg monarch from 1740 to 1780 | People | +1 / -0 / +1 | 0.523810 |
| 676 |  | Theoretical computer science | Subfield of computer science and mathematics | Mathematics | +1 / -0 / +1 | 0.523810 |
| 677 |  | Social theory | Framework used to study social phenomena | Society and social sciences | +1 / -0 / +1 | 0.523810 |
| 678 |  | Fireworks | Low explosive pyrotechnic devices for entertainment | Technology | +1 / -0 / +1 | 0.523810 |
| 679 |  | Stellar evolution | Changes to stars over their lifespans | Physical sciences | +1 / -0 / +1 | 0.523810 |
| 680 |  | Hanoi | Capital municipality of Vietnam | Geography | +1 / -0 / +1 | 0.523810 |
| 681 |  | Bumblebee | Genus of insect | Biology and health sciences | +1 / -0 / +1 | 0.523810 |
| 682 |  | Aurora | Atmospheric effect caused by the solar wind | Physical sciences | +1 / -0 / +1 | 0.523810 |
| 683 |  | Iris (plant) | Genus of flowering plants | Biology and health sciences | +1 / -0 / +1 | 0.523810 |
| 684 |  | Census | Compilation of information about a given population | Society and social sciences | +1 / -0 / +1 | 0.523810 |
| 685 |  | Alligator | Large reptile in the genus Alligator | Biology and health sciences | +1 / -0 / +1 | 0.523810 |
| 686 | Alternative rock | Music genre | Arts | +1 / -0 / +1 | 0.523810 | |
| 687 | Trade union | Organisation of workers with common goals | Society and social sciences | +1 / -0 / +1 | 0.523810 | |
| 688 |  | Xi'an | Capital of Shaanxi, China | Geography | +1 / -0 / +1 | 0.523810 |
| 689 |  | Tetrapod | Clade of the first four-limbed vertebrates and their descendants | Biology and health sciences | +1 / -0 / +1 | 0.523810 |
| 690 |  | First aid | Emergency first response medical treatment | Biology and health sciences | +1 / -0 / +1 | 0.523810 |
| 691 | Wedge | Triangular shaped tool | Technology | +1 / -0 / +1 | 0.523810 | |
| 692 |  | Standard error | Statistical property | Mathematics | +1 / -0 / +1 | 0.523810 |
| 693 |  | Cybernetics | Study of circular causal processes | Technology | +1 / -0 / +1 | 0.523810 |
| 694 | Freedom of religion | Human right to practice, or not, a religion without conflict from governing powers | Society and social sciences | +1 / -0 / +1 | 0.523810 | |
| 695 | History of slavery | History | +1 / -0 / +1 | 0.523810 | ||
| 696 |  | Ice age | Period of long-term reduction in temperature of Earth's surface and atmosphere | Physical sciences | +1 / -0 / +1 | 0.523810 |
| 697 |  | Sales | Activities related to the exchange of goods | Society and social sciences | +1 / -0 / +1 | 0.523810 |
| 698 |  | Time zone | Area that observes a uniform standard time | Technology | +1 / -0 / +1 | 0.523810 |
| 699 |  | Mindanao | Island in the Philippines | Geography | +1 / -0 / +1 | 0.523810 |
| 700 |  | Ethane | Organic compound (H3C–CH3) | Physical sciences | +1 / -0 / +1 | 0.523810 |
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