Energy and Its Impact

The video explores the vastness of energy consumption, comparing global usage to everyday items like light bulbs. It delves into food energy, equating calories to joules and discussing the potential explosive power of daily caloric intake. The dangers of electricity are highlighted, including the lethal potential of small currents and the impact of lightning. The video concludes with a discussion on solar and wind energy, emphasizing the potential to meet global energy demands and mitigate natural disasters.

How much of the world's energy does the US consume?

• 75%

• 50%

• 25%

• 10%

How many homes can Google's energy consumption power continuously?

• 100,000

• 200,000

• 400,000

• 300,000

How long would it take to charge yourself using a laptop's energy input?

• 35 hours

• 25 hours

• 55 hours

• 45 hours

What is the equivalent explosive power of consuming 2500 food calories?

• 44 grenades

• 33 grenades

• 55 grenades

• 22 grenades

What is the minimum current that can be lethal to humans?

• 7 milliamps

• 5 milliamps

• 9 milliamps

• 3 milliamps

How much sunlight energy reaches the Earth's surface every minute?

• 174 petawatts

• 224 petawatts

• 74 petawatts

• 124 petawatts

What is the main challenge in utilizing solar energy?

• Lack of sunlight

• Environmental impact

• Finding efficient ways to harness it

• Cost of solar panels

How can wind turbines help in preventing hurricanes?

• By increasing wind speed

• By cooling the air

• By changing wind direction

• By removing energy from the wind

What is the potential benefit of placing enough wind turbines in at-risk regions?

• Increase in wind speed

• Increase in rainfall

• Reduction in temperature

• Minimization of major wind disasters

Where did the exploration of wind turbine technology take place?

• NASA Research Center

• Stanford Wind Research Facility

• GE Global Research Center in Germany

• MIT Energy Lab