MrKeg792

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National Geographic Magazine

See Previous Issues<p><img itemprop="contentUrl" style="transition: opacity 0.4s; opacity: 1;"></picture></div> <div>April 2018</div></a> </div> <div class="prev_iss_cover"> <a href="https://www.nationalgeographic.com/magazine/2018/03" target="_self"> <div class="LazyLoad is-visible"><picture><source …

Extreme Sports

Skill Builder: 4 Useful Metal-Working Techniques

This project was commissioned to me by a local wedding decorator. My goal was to create a lightweight, portable, wrought iron sign that was elegant and complemented the wedding theme.<p>Here are 4 methods used in this video. It may take some practice, but ultimately, the final product is worth it.<p><b>1.</b> …

Emergency Response Drone With Defibrillator Inside

<i>Are you...my daughter?</i><p>This is the ambulance drone invented by 23-year old Dutch student Alec Momont. It packs a defibrillator inside and was designed …

Ceci N’est Pas Une Clock

[Justin] tipped us about his slick custom OBD-II gauge that could easily pass for an OEM module. He was able to use the clock area of his Subaru BRZ …

The Priest Who Invented The Big Bang - OpenMind

On this day 120 years ago, <b>Georges Lemaître, ‘father’ of the Big Bang</b> was born in Belgium. First soldier, then priest and astrophysicist, Lemaitre …

The 5 Most Important LinkedIn Features You Aren't Using Correctly

When LinkedIn debuted in 2003, it was merely an online resume and an entree to e-networking. Since then, LinkedIn has continuously enhanced its offerings – transforming into a complete career management resource. Our mindset about how to use LinkedIn, however, has not evolved as quickly as the …

Radical New Theory Could Kill the Multiverse Hypothesis

Author: Natalie Wolchover, Quanta Magazine. Natalie Wolchover, Quanta Magazine Science<p>Date of Publication: 08.25.14.<p>Time of Publication: 6:30 am. …

Fireworks from a drone’s perspective

A video posted well before this year’s 4th of July, but excellent nonetheless, shows what it’s like to be flying amongst fireworks as they’re fired. …

If Einstein Had Never Been Born, Would We Still Have Nuclear Weapons?

<i>Albert Einstein and his equation E=mc² are famously connected to the modern atomic age. But as nuclear historian Alex Wellerstein writes in this</i> …

CNC Plasma Cutter Build Presented In Excruciating Detail

If you have been wondering what it takes to build a CNC Plasma Cutter then get ready to look no further. [Desert Fabworks] has documented the trials …

Pwn Your GoPro: Scripting, WiFi, and Bus Hacking

GoPro cameras come out of the box with a huge set of features. Most people will be satisfied, or possibly even overwhelmed by the available options, …

Top nine executive resume mistakes

HR managers see these resume mistakes over and over again. Follow this checklist to make sure your resume isn’t one of the clunkers.<p>Professional …

[Ben Krasnow] Discusses the Heat Treatment of Steel

For home metallurgy, there are two sources of information for the heat treatment and tempering of steel. The first source is academic publications …

Visually tune your HF antenna using an oscilloscope and signal generator

Lots of readers are into toying around with RF and ham radios. One thing that is always of concern is tuning the antenna. New equipment is never …

Upgrading Cordless Drill Batteries to Lithium

Cordless power tool battery replacements are expensive: you can easily spend $100 for a NiCd pack. [henal] decided to skip nickle-based cells and cut …

Learn machining from an old school metal master

In the depths of YouTube there are still some jewels to be found. [Keith Fenner] is one of them. [Keith] owns Turn Wright Machine Works in Cape Cod, …

Potassium Chlorate from household products

To the upper right we have very pure potassium chlorate, so much so that it bursts into flames when mixed with sugar and catalyzed with some sulfuric …

Extruded rail and 3D printed connectors form a proper laser engraver

Fast and accurate is a good description of this laser engraver built by [Ragnar] and [Gunnar]. The’re planning to show it off at the Trondheim Maker …

How-To: Watermelon Smoothie Hack

NASA engineer Mark Rober put together an amazingly simple watermelon smoothie hack from just a coat hanger and an electric drill with some impressive results!

Why Vegan Diets Suck

5 reasons to enjoy your ham and cheese sandwich<p>There is no one right way to eat for everyone.<p>We are all different and what works for one person may not work for the next.<p>I personally advocate consumption of both animals and plants and I think there is plenty of evidence that this is a reasonable …

On not getting metal fume fever with galvanized conduit

You can find galvanized steel pipes at Home Depots and construction sites all around the world. These relatively thin-walled steel pipes would make …

Redox Power Plans To Roll Out Dishwasher-Sized Fuel Cells That Cost 90% Less Than Currently Available Fuel Cells

Redox Power Systems, a Fulton, MD-based start-up company founded last year, sealed the deal on a partnership with researchers at the University of Maryland to commercialize a potentially game-changing distributed generation technology.<p>Redox says that it plans to bring to market a fuel cell that is …

3D-Printed SkySweeper Robot Inspects Power Lines

The SkySweeper, constructed with 3D-printed parts, is able to inch along power lines to inspect them. Built by UC San Diego engineering grad student Nick Morozovsky, the SkySweeper can be built for far cheaper than other line inspection robots.<p>SkySweeper is V-shaped with a motor-driven “elbow” in …

Are climate sceptics the real champions of the scientific method?

As part of our series on science and the green movement, Warren Pearce looks at how science is used by their opponents<p>Since climate change came to prominence in 1988, the role of scientific knowledge – especially an idea of scientific consensus – has played a starring role in the ensuing academic …

Why do physicists gravitate towards jobs in finance?

Of those who will be graduating with degrees in physics this year, around a half will go on to further study (doing a PhD is the most popular …

'Holographic Duality' Hints at Hidden Subatomic World

According to modern quantum theory, energy fields permeate the universe, and flurries of energy in these fields, called “particles” when they are …

Drone monitors fields to spot weeds

Handibot

With Handibot ($2,000), every DIY enthusiast now has access to a portable CNC (computer numerically controlled) mill. For those not familiar with CNC …

What is the New Industrial Revolution?

We live in revolutionary times that some call a “new industrial revolution” – driven by the mixing of computers with manufacturing technology. By far, the all-star of this movement is the home 3D printer – as typified by the RepRap and its hundreds of derivatives. There’s a lot of great energy in …

Thorium nuclear reactor trial begins, could provide cleaner, safer, almost-waste-free energy - ExtremeTech

By on July 1, 2013 at 2:32 pm<p>This site may earn affiliate commissions from the links on this page. Terms of use.<p>At a test site in Norway, Thor Energy …

Energy