One of my first memories as a child in the 1950s was a discussion I had with my brother in our tiny bedroom in the family house in Bethlehem, Pennsylvania.

    We had heard in school about a planet called Pluto. It was the farthest, coldest, and darkest thing a child could imagine. We guessed how long it would take to die if we stood on the surface of such a frozen place wearing only the clothes we had on. We tried to figure out how much colder Pluto was than Antarctica, or than the coldest day we had ever experienced in Pennsylvania.

    Pluto, which famously was downgraded from a “major planet” to a “dwarf planet”（矮星） in 2006, captured our imagination because it was a mystery that could complete our picture of what it was like at the most remote corners of our solar system.

    Pluto's underdog discovery story is part of what makes it so attractive. Clyde Tombaugh was a Kansas farm boy who built telescopes out of spare auto parts, old farm equipment and self-ground lenses. As an assistant at Lowell Observatory in Flagstaff, Arizona, Tombaugh's task was to search millions of stars for a moving point of light, a planet that the observatory's founder thought existed beyond the orbit of Neptune. On February 18，1930，Tombaugh found it. Pluto was the first planet discovered by an American, and represented a moment of light in the midst of the Great Depression's dark encroachment (入侵).

    Pluto is much more than something that is not a planet. It's a reminder that there are many worlds out there beyond our own and that the sky isn't the limit at all. We don't know what kinds of fantastic variations on a theme nature is capable of making until we get there to look.

    Here is your best chance to travel around the UK in 2012: More than 200 B&Bs (bed & breakfast) across England, Scotland, Wales and Northern Ireland are selected to offer you amazing services for your stay at their lowest prices! Don't miss it. Just collect the vouchers（活动券）in our B&B Daily printed from 01/ 04/ 2012 to 07/ 04/ 2012 and book the stays for your travel following the terms and conditions below:

● The offer includes a room for the night and a breakfast the next morning.

● The offer is of two kinds: £20 per room, per night, valid（有效的）during stay

period of 02/ 04/ 2012—31/ 05/ 2012 and then again 01/ 09/ 2012— 31/ 10/ 2012; £35 per room, per night, valid during stay period of 01/ 06/ 2012 — 31/ 08/ 2012.

● The offer is valid for a basic twin or double room only.

● The stay must be booked directly with the chosen B&Bs before 28/ 04/ 2012.

● Each voucher can only be used by the holder to book one room for one night.

● If voucher holders book either the £20 or £35 per room per night, any additional

    services such as lunch, evening meal or activities may require an extra charge. But these are not required in order to take up the offer. Please check directly with your chosen B&Bs to see what extra services are available.

● Vouchers must be presented on arrival. If no vouchers are presented, the B&Bs may reserve（保留） the right to charge at full price for every night of stay.

● Vouchers may not be used together with any other offer.

● The voucher holders must pay for the stay in full at the time of booking. Additional £10 may be paid to confirm（确认）the booking and will be returned on arrival.

● The B&Bs reserve the right to refuse voucher holders' bookings for people under the age of 18.

    In the far future, robots live on Earth as humans but the population of humans is smaller than a thousand. This is a story of a repair robot R-62.

    One day, a car came to the repair factory and a human stepped out of the car.

    "Wow, a human! I have never seen a real one," said R-62.

    "Humans are quite clever. They're able to do any action they want to. They're even able to harm other human beings or organize wars, which they have been doing a lot in the history. Also they don't even have to follow orders if they don't want to," said another robot T-59 quietly to R-62.

    "How terrible it is! And almost all robots seem afraid of him and don't look at him directly," said R-62.

    The human then sat down and asked if there had been any problems in the last 10 years and he only got a quick answer, "No, sir."

    Then suddenly, R-62 said loudly, "I have one question for you."

    The human said, "Yes", a bit unhappy for not getting "sir".

    "Why do human create so many robots?" asked R-62.

    Silence followed the question and he then said, "I don't need to answer questions from robots!" He then went into his car and drove away quickly.

    "I really don't understand why humans replaced (取代)themselves with robots," asked R-62.

"Because they thought that robots were more advanced(先进的) than humans. They created us to support themselves," answered T-59.

    "But there are so few humans on Earth. What they should do is take away the robots or at least make them stop doing the work which humans are supposed to do," said R-62.

    "I agree. But we can do nothing about it. And now we have to finish repairing this car," said T-59.

    "All right, let's continue."

The Master Gardener Foundation

Aim

The Master Gardener Foundation provides free information to the public on environmentally safe gardening practices and water conservation. The information is research-based and encourages limited use of farm chemicals and fertilizers.

Donation Activities

The master gardeners here did much donation work. They donated over 35,000 volunteer hours, serving 40,000 adults and more than 5,200 children. They did this through about 35 plant clinics, 6 demonstration gardens, 4 youth gardens, as well as a classroom program and dozens of workshops. The Master Gardener Foundation provides roughly two-thirds of the financial support for all these valuable activities.

Washington State University currently provides the salary and benefits of the Master Gardener Program. The foundation funds office space and supplies, as well as a part-time program assistant.

The Master Gardener Program

Safe and green gardening and water use practices are vital to preserving our environment. The Master Gardener Program seeks to provide this kind of education and information to the citizens for free. It is a highly successful example of cooperation between a foundation and volunteers.

Waiting for Your Donations

The Master Gardener Foundation is a non-profit organization, and all donations are allowed by law and support the Master Gardener Program and activities.

Please consider a donation to the Master Gardener Foundation and help keep our environment green!

Nature supports us in a wide variety of ways, whether we are conscious of these gifts or not. {#blank#}1{#/blank#}By following these tricks for first-time campers, anyone can engage with nature in a more grateful way.

Take full advantage of Nature

If you're close to flowing water, you can choose from various approaches to stay hydrated, as well as wash dishes and do laundry, without taking much trouble to bring all your water with you. {#blank#}2{#/blank#}This is a fantastic way to begin your day.

Do your Research

{#blank#}3{#/blank#}Some trees supply wood that's appropriate for making walking sticks. Some wood is suitable for starting fires, while other wood is fit for keeping them going. Other trees may provide nuts and fruits.

Fully Enjoy Nature

My hope is that the strategies for first-time campers will help you appreciate the great outdoors. Whether you're hiking, fishing, swimming, or cooking by a warm fire, each of them is fun. I live approximately 2 miles from fabulous Current River, which is fed by cold springs some 40 miles upstream. {#blank#}4{#/blank#}

I have no interest in hunting or party; I fancy simply sitting on a sand bar at dawn, watching the mist rise from the water. {#blank#}5{#/blank#} I listen for the beavers making splashes at night with their wide, flat tails. I hear coyotes howling at night too. I've seen cottonmouth snakes and even panther tracks! I love the serenity and the small thrills, the kinds of experiences I wouldn't trade for anything in the world.

A. I see and hear all kinds of wildlife.

B. But nature isn't just there for us to exploit.

C. Set up a place where you can stay comfortably.

D. If you're near a body of water, you can go swimming.

E. Become familiar with different trees and what they offer.

F. If you can accept nature as it is, it can work in your favor.

G. The river stays cool pretty much year-round and is refreshing in summer.

Research has found that using wood for construction instead of concrete and steel can reduce emissions. But Tim Searchinger at Princeton University says many of these studies are based on the false foundation that harvesting wood is carbon neutral (碳中和). "Only a small percentage of the wood gets into a timber (木料) product, and a part of that gets into a timber product that can replace concrete and steel in a building," he says. Efficiencies vary in different countries, but large amounts of a harvested tree are left to be divided into parts, used in short-lived products like paper or burned for energy, all of which generate emissions.

In a report for the World Resources Institute, Searchinger and his colleagues have modelled how using more wood for construction would affect emissions between 2010 and 2050, accounting for the emissions from harvesting the wood. They considered various types of forests and parts of wood going towards construction. They also factored in the emissions savings from replacing concrete and steel.

Under some circumstances, the researchers found significant emissions reductions. But each case required what they considered an unrealistically high portion of the wood going towards construction, as well as rapid growth only seen in warmer places, like Brazil. In general, they found a large increase in global demand for wood would probably lead to rising emissions for decades. Accounting for emissions in this way, the researchers reported in a related paper that increasing forest harvests between 2010 and 2050 would add emissions equal to roughly 10 percent of total annual emissions.

Ali Amiri at Aalto University in Finland says the report's conclusions about emissions from rising demand are probably correct, but the story is different for wood we already harvest. "Boosting the efficiency of current harvests and using more wood for longer-lived purposes than paper would cut emissions," he says. "We cannot just say we should stop using wood."