If a physicist in Houston has his way you 'll be able to say good-bye to pollution-causing energy production from fossil fuels. In the April May issue of The Industrial Physicist, Dr David Criswell suggests that the Earth could be getting all of the electricity it needs by using solar cells- on the moon. In the article Criswell proposes a Lunar Solar Power(LSP) System, using arrays of solar cells on the lunar surface to beam energy back to Earth Criswell estimates that the 10 billion people living on Earth in 2050 will require 20 Terrawatts(TW)of power. The Moon receives 13,000 TW of power from the sun. Criswell suggests that harnessing just 1% of the solar power and directing it toward Earth could replace fossil fuel power plants on Earth The LSP system consists of 20-40 lunar power bases, situated on the eastern and western edges of the moon, as seen from Earth. Each power base has a series of solar cells collect energy from the sun, which is sent over buried electric wires. The generators ther send the energy to screens that reflect the microwave beams toward Earth, where they are received by arrays of special antennas strategically placed about the globe LSP is probably the only option for powering a prosperous world within the 21st century" says Criswell. However, it does require some improvement on the practical side 1. Dr. Criswell works in A)America B)Britain C) Germany D)france 2. The LSP system makes use of A)the solar energy b)the lunar energy C)fossil fuels D) the nuclear power 3. The lunar power bases A)are placed on the earth B)are placed on the moon C)are fixed on the man-made planet D)absorb the sun beams is not included in the LSP system A)A generator B A microwave oven C)Special antennas D) Electric wires 5. Dr. Criswell thought that A)the LsP system would not succeed in the future B)it was impractical to carry on the project C)in the 21st century the LsP system would provide most of the energy we need D)there was still room for improvement as to the LSP syster Who takes care of the elderly in the United States today? The fact is that family members provide over 80% of the care that elderly people need. Most times, the elderly live in thei own homes. a very small percent of America's elderly live in nursing homes Samuel Preston, a sociologist at the University of Pennsylvania, studied how the American family is changing. He reported that by the time the average American couple reaches 40 years of age, their parents are usually still alive. This statistic shows the change in lifestyles and responsibilities of aging Americans. The average middle-aged couple can look forward to caring for elderly parents sometime after their own children have grown up Moreover, because people today live longer after an illness than people did years ago, family members must provide long-term care. These facts also mean that after caregivers provide for their elderly parents, who will eventually die, they will be old and may require care too When they do, their spouses will probably take care of them because they have had fewer children than their parents didIf a physicist in Houston has his way you”ll be able to say good-bye to pollution-causing energy production from fossil fuels. In the April / May issue of The Industrial Physicist, Dr. David Criswell suggests that the Earth could be getting all of the electricity it needs by using solar cells ― on the moon. In the article Criswell proposes a Lunar Solar Power (LSP) System, using arrays of solar cells on the lunar surface to beam energy back to Earth. Criswell estimates that the 10 billion people living on Earth in 2050 will require 20 Terrawatts (TW) of power. The Moon receives 13,000 TW of power from the sun. Criswell suggests that harnessing just 1% of the solar power and directing it toward Earth could replace fossil fuel power plants on Earth. The LSP system consists of 20 - 40 lunar power bases, situated on the eastern and the western edges of the moon, as seen from Earth. Each power base has a series of solar cells to collect energy from the sun, which is sent over buried electric wires. The generators then send the energy to screens that reflect the microwave beams toward Earth, where they are received by arrays of special antennas strategically placed about the globe. “LSP is probably the only option for powering a prosperous world within the 21st century” says Criswell. “However, it does require some improvement on the practical side.” 1. Dr. Criswell works in ________. A) America B) Britain C) Germany D) France 2. The LSP system makes use of ________. A) the solar energy B) the lunar energy C) fossil fuels D) the nuclear power 3. The lunar power bases ________. A) are placed on the earth B) are placed on the moon C) are fixed on the man-made planet D) absorb the sun beams 4. ________ is not included in the LSP system. A) A generator B. A microwave oven C) Special antennas D) Electric wires 5. Dr. Criswell thought that ________. A) the LSP system would not succeed in the future B) it was impractical to carry on the project C) in the 21 st century the LSP system would provide most of the energy we need D) there was still room for improvement as to the LSP system - Who takes care of the elderly in the United States today? The fact is that family members provide over 80% of the care that elderly people need. Most times, the elderly live in their own homes. A very small percent of America’s elderly live in nursing homes. Samuel Preston, a sociologist at the University of Pennsylvania, studied how the American family is changing. He reported that by the time the average American couple reaches 40 years of age, their parents are usually still alive. This statistic shows the change in lifestyles and responsibilities of aging Americans. The average middle-aged couple can look forward to caring for elderly parents sometime after their own children have grown up. Moreover, because people today live longer after an illness than people did years ago, family members must provide long-term care. These facts also mean that after caregivers provide for their elderly parents, who will eventually die, they will be old and may require care too. When they do, their spouses will probably take care of them because they have had fewer children than their parents did