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Nuclear Physics – W. Heisenberg
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Genre: Physics
Price: $1.99
Publish Date: May 7, 2019
Publisher: Philosophical Library/Open Road
Seller: OpenRoad Integrated Media, LLC
The Nobel Prize–winning physicist offers a fascinating popular introduction to nuclear physics from early atomic theory to its transformative applications. Theoretical physicist Werner Heisenberg is famous for developing the uncertainty principle, which bears his name, and for his pioneering work in quantum mechanics. A central figure in the development of the atomic bomb and a close colleague of Albert Einstein, Heisenberg wrote Nuclear Physics “for readers who, while interested in natural sciences, have no previous training in theoretical physics.”   Compiled from a series of his lectures on the subject, Heisenberg begins with a short history of atomic physics before delving into the nature of nuclear forces and reactions, the tools of nuclear physics, and its world-changing technical and practical applications. Nuclear Physics is an ideal book for general readers interested in learning about some of the most significant scientific breakthroughs of the twentieth century.  
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Western rangelands threatened by intensifying wildfires
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This Is Not A Drill – Extinction Rebellion
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An Extinction Rebellion Handbook
Genre: Nature
Price: $9.99
Publish Date: June 13, 2019
Publisher: Penguin Books Ltd
Seller: Penguin Books Limited
Extinction Rebellion are inspiring a whole generation to take action on climate breakdown. Now you can become part of the movement – and together, we can make history. It’s time. This is our last chance to do anything about the global climate and ecological emergency. Our last chance to save the world as we know it. Now or never, we need to be radical. We need to rise up. And we need to rebel. Extinction Rebellion is a global activist movement of ordinary people, demanding action from Governments. This is a book of truth and action. It has facts to arm you, stories to empower you, pages to fill in and pages to rip out, alongside instructions on how to rebel – from organising a roadblock to facing arrest. By the time you finish this book you will have become an Extinction Rebellion activist. Act now before it’s too late.
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Tagged genre, governments, Handbook:, limited, nature, penguin, penguin books, price, publish-date, pur, rebellion-genre, world
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Cosmic Impact – Andrew May
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Understanding the Threat to Earth from Asteroids and Comets
Genre: Physics
Price: $6.99
Publish Date: February 7, 2019
Publisher: Icon Books Ltd
Seller: Perseus Books, LLC
As end-of-the-world scenarios go, an apocalyptic collision with an asteroid or comet is the new kid on the block, gaining respectability only in the last decade of the 20th century with the realisation that the dinosaurs had been wiped out by just such an impact. Now the science community is making up for lost time, with worldwide efforts to track the thousands of potentially hazardous near-Earth objects, and plans for high-tech hardware that could deflect an incoming object from a collision course – a procedure depicted, with little regard for scientific accuracy, in several Hollywood movies. Astrophysicist and science writer Andrew May disentangles fact from fiction in this fast-moving and entertaining account, covering the nature and history of comets and asteroids, the reason why some orbits are more hazardous than others, the devastating local and global effects that an impact event would produce, and – more optimistically – the way future space missions could avert a catastrophe.
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Tagged andrew, cosmic-impact, earth, genre, hollywood, nature, physics, physics-price, pur, Understanding
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EPA’s 3 dirty tricks to undermine regulation (and why they probably won’t work)
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EPA’s 3 dirty tricks to undermine regulation (and why they probably won’t work)
Is geoengineering the answer to the climate crisis?
The floor of the Gulf of Mexico could be future home to a lot of carbon
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The floor of the Gulf of Mexico could be future home to a lot of carbon
Should I Replace My Roof Before Going Solar?
If you have decided to install a solar photovoltaic (PV) system on your roof, it is a good idea to do some advanced planning. Solar panels are designed to last 25 to 30 years. Some roofs only last 20 years or less depending on the climate. If you are going to install a solar system and the roof needs to be replaced soon, it is best to do this first.
Removing the solar panels to do roof work is a labor-intensive project in itself. A simple way to avoid this additional expense is by replacing an old roof before going solar.
Asphalt Shingle or Composite Roofs
Asphalt is the most common roofing material in the United States. These roofs are typically less durable than the solar panels and are designed to last 20 years. In fact, it is relatively common for solar panels to protect asphalt shingle roofs from hail damage. Attaching solar panels merely involves drilling into the roof and attaching the mounting hardware to roof studs. The roof penetrations are then sealed off to prevent water infiltration.
Tile or Ceramic Roofs
While it is possible to install solar panels on a ceramic roof, it requires care to avoid damage to the roof. First, the ceramic tiles are removed, then the brackets are installed with flashing to prevent roof leaks. Although there are other approaches, drilling through tiles can result in them breaking.
Standing-Seam Metal Roof
These are the best roofs for solar panels but do come at a higher upfront cost than asphalt shingle roofs.
Metal roofs are designed to last between 40 and 70 years, which is longer than solar panels. Because of their longevity, the roofs are inexpensive to maintain, resulting in long-term cost savings.
The seams in the roof can be used for mounting hardware for the panels, eliminating the need for roof penetrations. Because it is simpler and quicker than installing solar panels on other roof types, you might also have lower installation costs. If you do decide to replace your roof, make sure the roof is designed for energy efficiency and indoor comfort.
Another advantage of metal roofs is that they are more eco-friendly than asphalt shingles. Metal roofs can also significantly reduce heating and cooling costs when a batten/counter batten system is used. This configuration promotes home efficiency because it helps stop heat from entering the home in the summer and prevents heat from escaping in the winter. Metal roofs last two to three times as long as shingles, thus they require fewer materials over the life of the roof. Another advantage is that they are recyclable at the end of life and commonly contain recycled materials. Metal roofs with gutters are also great for harvesting rainwater.
Like with any other major purchase, it is a good idea to do some advanced planning. Installing a solar energy system can result in significant cost savings, but needing to remove the panels a year or two after the installation to replace the roof would decrease your solar investment return.
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Tagged life, metal, pur, roofs, solar power, summer, united, work
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Trump signs a relief bill covering a catalogue of climate disasters
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Trump signs a relief bill covering a catalogue of climate disasters
