William Stewart Lindenberger

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How to Sharpen a Knife

Whether it’s used for cooking or precision woodworking, a knife is one tool you’ll want to keep sharp. Some tips:<p><b>1.</b> Begin with a sharpening stone — a 1,000/6,000-grit combination is a good starter stone. One side works to “set” the edge, the other to refine it.<p><b>2.</b> Sharpen the blade at a 10°–15° …

LED Constellation Wall Art

What’s your sign? Bring the cosmos into any room with this simple DIY LED wall art!<p>Materials needed:<p>plywood (select desired size)<br>• knowledge of the free downloadable program Inkscape<br>• any constellation star map<br>• pencil<br>• ruler<br>• electric sander<br>• drill + various sized bits<br>• black wood stain<br>• black spray paint<br>• 220 grit …

FAA risks losing drone war

The Washington Nationals used a drone to photograph spring training. Real estate agents use them to show off sprawling properties. Martin Scorsese hired one to film a scene in “The Wolf of Wall Street.”<p>So where does this leave the Federal Aviation Administration, which insists that commercial drone …

Fracking is depleting water supplies in America's driest areas, report shows

From Texas to California, drilling for oil and gas is using billions of gallons of water in the country's most drought-prone areas<p>America's oil and gas rush is depleting water supplies in the driest and most drought-prone areas of the country, from Texas to California, new research has found.<p>Of the …

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Inconsistencies Haunt Official Record Of Kennedy's Death

The first thing T. Jeremy Gunn says when you ask him about President John F. Kennedy's assassination is, "I'm not a conspiracy theorist. I don't have a theory about what happened."<p>But he knows <i>a lot</i> about it from his work for the Assassination Records Review Board, established by Congress in 1992, …

Here's the Insane Video from the Skydiving Plane Crash That Everyone Survived

This article is from the archive of our partner .<p>Over the weekend, two planes full of skydivers crashed into one another some 12,000 feet in the air, …

A year after Sandy, Bounty rescue highlights courage of Coast Guard

Superstorm Sandy’s devastation on shore was unprecedented, but Sandy also created a tragedy at sea that would become one of the most puzzling aspects of the disaster -- the loss of a wooden sailing ship that had bizarrely sailed straight into the storm.<p>A year later, that footnote to the larger …

Obama Ratings Sink As Trustworthiness Comes Into Question

Barack Obama has been subjected to as many personal attacks as any modern president.<p>Terrorist. Traitor. Hater of America. Secret Muslim.<p>Unusually for a politician, however, the one thing he hasn't been called much is a liar, except by his most adamant critics.<p>That's all changed now. Obama is being …

How a Nato war game took the world to brink of nuclear disaster

Former classified documents show how close the Soviet Union came to launching an attack in 1983<p>Chilling new evidence that Britain and America came close to provoking the Soviet Union into launching a nuclear attack has emerged in former classified documents written at the height of the cold …

Is Rebuilding Storm-Struck Coastlines Worth The Cost?

One year ago Tuesday, Hurricane Sandy bore down on the East Coast, devastating shoreline communities from Florida to Maine.<p>Many of these areas have been rebuilt, including the Long Beach boardwalk, about 30 miles outside New York City. Officials held a ribbon-cutting ceremony for the new boardwalk …

There’s one key difference between kids who excel at math and those who don’t

“I’m just not a math person.”<p>We hear it all the time. And we’ve had enough. Because we believe that the idea of “math people” is the most self-destructive idea in America today. The truth is, you probably <i>are</i> a math person, and by thinking otherwise, you are possibly hamstringing your own career. …

Mathematics

JFK book assails conspiracy theory

A forthcoming book raises serious doubts about a key piece of evidence that led a House committee to conclude in 1979 that President John F. Kennedy was likely killed as part of a conspiracy.<p>University of Virginia political scientist Larry Sabato commissioned a scientific analysis of the Dallas …

Iran's Dangerous Nuclear Bluff

President Obama’s historic phone conversation with Iran’s new President Hassan Rouhani sure made the meetings of the U.N. General Assembly exciting (Kurt Eichenwald, Newsweek). It’s finally calling a very serious bluff – that Iran has a nuclear weapon, or can build one quickly.<p>This is a very …

North Korea's luxury ski resort opens for business

Kim Jong-un is hoping the multimillion-dollar Masik Pass will boost tourism and show North Korea is as civilised as the west<p>The secretary general of North Korea's ski association views the sprawling alpine landscape before him with unabashed pride. Facing a strong, cold wind, he points to a dip in …

In secret, Fisa court contradicted US supreme court on constitutional rights

Declassified Fisa rulings reveal a permissive approach to fourth amendment violations disturbingly at odds with supreme justices'<p>On Tuesday, the Foreign Intelligence Surveillance Court (FISC) declassified an opinion in which it explained why the government's collection of records of all Americans' …

EPA Quietly Withdraws Two Proposed Chemical Safety Rules

WASHINGTON -- The Environmental Protection Agency this week quietly withdrew two draft rules dealing with the regulation of chemicals. The potential rules were in limbo at the Office of Management for several years.<p>One of the rules was a proposal to add Bisphenol A (BPA), a chemical included in …

Scientists Learn to Grow 'Mini' Human Brains in a Lab

This article is from the archive of our partner .<p>A team of scientists at the Institute of Molecular Biotechnology in Austria have developed a method …

Chinese lawyers targeted as Xi Jinping tightens control

China's new leaders have accelerated the country's descent into a police state, not only arresting scores of critics but now also targeting their lawyers.<p>Six months after Xi Jinping became president, he has confounded hopes that he might tread a more liberal path.<p>Instead, his administration has …

Evidence Supports Pill To Prevent Some Prostate Cancers

Researchers say a cheap, generic pill called finasteride prevents almost 40 percent of low-grade prostate cancers without increasing the risk of dying from more aggressive tumors.<p>New evidence points to the drug as a potentially safer way to deal with prostate cancers that now get more intense …

Extreme heat waves to quadruple by 2040, study says

People crowd at the beach at Coney Island in the Brooklyn borough of New York amid a record heat wave in 2012.<p>The type of heat waves that wilt crops, torch forests — and kill people — are expected to become more frequent and severe over the next 30 years regardless of whether humans curb emissions …

Climate Change

100,000 people apply for a one-way trip to Mars

Mars One wants to send humans on a one-way trip to the Red Planet in 2022. Four individuals will be selected out of the more than 100,000 that have already applied, according to the Dutch nonprofit. But would members of such an expedition, estimated to cost $6 billion, survive the trip?<p>The Obama …

Kids And TV: Watching An Extra Hour Can Harm Kindergarten Performance, Study Says

Yet another data point has been added to the ongoing debate over how much TV watching is too much for young children.<p>A study of Canadian children has found that even an extra hour of TV time -- above the daily average of 72 minutes -- could significantly harm a child’s performance in kindergarten, …

China set to become world’s biggest oil importer

China is poised to overtake the United States as the world's leading oil importer in October, part of a long-term trend that is forcing the Asian giant to find new supply sources including Canada to fuel its economy.<p>Chinese crude imports will exceed those of the United States for the first time on …