Top network posts
- 43 Why doesn't the brightness of a bulb change with time?
- 30 Stay in academia or become professor without overworking, is it possible?
- 18 Yellow-X-Blue Rebus
- 15 How many lives would be saved if the airlines turned all the seats around?
- 8 Locating source of excessive energy use
- 5 Line graph of altitude and pressure
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