Yesterday, BP started an ambitious effort to stop the Deepwater Horizon oil spill with a "top kill"—pumping drilling "mud" into the well at a fast enough rate that it backs up the flow of oil behind the broken blowout preventer and starts to form a plug. Today, the Coast Guard announced that this effort appears to be working. It's too soon to call it an unqualified success, but things are looking good and we may get the leak officially stopped up in the next day or so. That doesn't solve the clean-up issue, but it's a relief to know that something is working.
I've seen a lot of really bad explanations of the top kill process in the news. Frankly, I wasn't entirely clear on how it worked until I read this description on the Oil Drum Blog. It likened the leak to a stopped up sewer line. If you have tree roots growing through your sewer, you can still turn the sink on, and liquid can get through. But if you up the volume—flush the toilet or run the washing machine—everything gets backed up and flows back into your basement. Essentially, the broken blowout preventer is the tree roots, and the drilling mud was used to increase the volume of liquid enough that it couldn't get through the break.
Also, for the record, drilling mud isn't mud like you'll find in your backyard. There's been a lot of confusion on that point, and a lot of the news reports I've seen haven't cleared it up much. Drilling mud is an engineered lubricant. Clay is often one ingredient, but there are many types of drilling fluid that get called "mud" and they're usually a mixture of clays, water and various chemicals. Amusingly—at least for anyone who saw "There Will Be Blood"—drilling mud is supposed to look a lot like a chocolate malt.
Dip your dollar into liquid anhydrous ammonia, dry it, and repeat. The surface tension of the boiling and evaporating ammonia shrinks the bill. Caveat: It could prove difficult to use a mini-dollar and mutilating a bill may even be illegal. (Applied Science via Weird Universe)
In many states in America, legislatures have erected punitive, vindictive barriers for women seeking contraception, requiring them to get prescriptions for safe, widely taken medications.
Designer Art Donovan writes, “I’m always looking for new and unique inspiration for my lighting commissions and the latest, cutting edge scientific devices offer a boatload of great design inspiration. From the cool, new ‘James Webb Space Telescope’ to the myriad of complex details in the L.H.P.C. at Cern- it’s a cornucopia of rich imagery.”
Folks used to rely on alarms to protect their home – and before that, the family dog. Now, anyone looking to guard their homes can choose from some high-tech options, including the Amaryllo iCamPRO FHD Home Security Camera (now just $219 in the Boing Boing Store).In fact, this 2015 CES “Best of Innovation” award-winner boasts so many features, it’s […]
If you want a quality vaping experience, it’s usually going to cost you. Vaporizers that deliver a fast, controlled burn will set you back up to $300, which is why the FEZ Vaporizer (now just $99) is an absolute steal.The FEZ dry herb pen does everything that more expensive models handle at a reduced price. It heats up […]
Taking pictures can be challenging. There are a million factors that can influence each shot you take – and unless you’re a trained photographer, you often just focus, click…and cross your fingers.Of course, you can take some of the ambiguity out of your picture-taking with this Hollywood Art Institute Photography Course & Certification package, now […]