Top network posts

• 74 Did astronauts or cosmonauts have sex in space?
• 66 Can Chinese people read the literature of 2,500 years ago as easily as yesterday's newspapers
• 59 Does a column of marching soldiers have to break their rhythm while crossing a bridge to prevent its collapse?
• 25 Did Iraq have the use of electricity 5000 years ago?
• 25 Is spider silk stronger than steel?
• 25 Did drinking milk cause an evolutionary change in the human genome?
• 22 Are smartphones, keyboards, and tablets more contaminated with Staphylococcus aureus than a public toilet seat?
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