Can you sharpen scissors by cutting Aluminum foil?
asked Jan 13 at 18:29
Has the Catholic Church lifted more people out of poverty than any other civic institution?
asked Dec 30 '13 at 21:09
Was the mileage of the Apollo spaceships 7 inches to the gallon for their moon flights?
Is it accurate to say that 97% of experts agree that global warming is anthropogenic?
Does this graph show climate-change predictions don't meet observations?
Does the phase-out of incandescent light bulbs measurably reduce overall electrical power consumption?
In the USA, are there more African American men in prison than in college?
How can I understand “thirty-seconds of a dollar”?
Does one Volcanic eruption release more CFC's into the atmosphere than all man made CFC's combined since their invention?
Has income tax been found unconstitutional by a court?
Does sealing electrical outlets reduce heating costs?
Did archaeologist Stan Taylor discover human footprints dated from the period of dinosaurs?
Do fluorescent lights use more power to turn on?
Does a tax increase on high incomes slow down economic growth?
Did banning lead additives in petrol (gasoline) make a large contribution to lowering lead levels in people's blood?
A word for an object that contains two evolutionarily related objects
Has climate change measurably increased the likelihood of tropical storms such as Haiyan?
Does physics give a climate sensitivity to carbon dioxide of about 3°C?
How long does it take for renewable technology to recoup its energy cost?
Is Antarctica gaining or losing ice?