During the American Revolution, the Continental Congress adopted a resolution on June 14th, 1777, stating that “the flag of the United States be thirteen alternate stripes red and white” and that “the Union be thirteen stars, white in a blue field, representing a new Constellation.” The national flag, which became known as the “Stars and Stripes,” was based on the “Grand Union” flag– a banner carried by the Continental Army in 1776 that also consisted of 13 red and white stripes.
The understanding of water filtration requires a look at various filtration methods as well as contaminants. Let’s take a look at these.
Water Filtration Methods
Carbon/Activated Carbon Filters
Activated carbon chemically bonds with and removes some contaminants in water filtered through it. Carbon filters vary greatly in effectiveness. Some just remove chlorine and improve taste and odor, while others remove a wide range of contaminants, including asbestos, lead, mercury, and volatile organic compounds (VOCs). However, activated carbon cannot effectively remove common “inorganic” pollutants, such as arsenic, fluoride, hexavalent chromium, nitrate, and perchlorate. Generally, carbon filters come in two forms– carbon block and granulated activated carbon.
Carbon block filters contain pulverized activated carbon that is shaped into blocks under high pressure. They are typically more effective than granulated activated carbon filters, because they have more surface area. Their effectiveness depends in part on how quickly water flows through.
Granulated activated carbon … Continue reading
I’ve read JWR’s books and have been reading your site for a year now. I am a big fan. However, I’ve seen little or no verbiage on where to buy reasonably priced NVG or IR. Obviously your books and those of other good writers, like Joe Nobody, talk constantly about using them, and yet, it seems none are priced less than $1500. Any info would be appreciated. Thanks in advance. – J
As an entry level device, you can get a first generation device (usually Russian made) at nearly any sporting goods store that carries hunting/camping equipment for as low as $300. While these devices are okay for basic use, they have limited range and limited resolution. Unless they have been autogated (shuts off temporarily when bright lights are sensed) they can be damaged in normal light. They can also go completely white (well, really green) ruining … Continue reading
Here are JWR‘s Recommendations of the Week for various media, tools, and gear of interest to SurvivalBlog readers. This week’s emphasis is on forest thinning.
The Vegetable Gardener’s Bible, 2nd Edition: Discover Ed’s High-Yield W-O-R-D System for All North American Gardening Regions: Wide Rows, Organic Methods, Raised Beds, Deep Soil
Scouting And Patrolling: Ground Reconnaissance Principles And Training
Slum Dog Millionaire. JWR’s Comments: This movie is intense and has some crudity. But it shows just how cruel life is for India’s slum dwellers.
Land of Mine. JWR’s Comments: The events depicted, though fictionalized, are essentially true. Until this film was released, very few had heard about the use of impressed POWs for de-mining, following World War II.
Here are the latest items and commentary on current economics news, market trends, stocks, investing opportunities, and the precious metals markets. We also cover hedges, derivatives, and obscura. And it bears mention that most of these items are from the “tangibles heavy” contrarian perspective of JWR. (SurvivalBlog’s Founder and Senior Editor.) Today’s focus is on the bargain prices now available on DPMS AR-15 Oracle rifles. The market fro “black rifles” has bottomed!
First off, there is this: Gold’s Strength Is Justified Says UBS
Next, over at OilPrice.com, Henry Trinh reports: Top Asset Managers Still Bullish On Crude
o o o
Reuters: U.S. shale firms more exposed to falling oil prices as hedges expire
On to the foreign exchange (Forex) news: EUR/USD … Continue reading
“There is no position which depends on clearer principles, than that every act of a delegated authority, contrary to the tenor of the commission under which it is exercised, is void. No Legislative act, therefore, contrary to the Constitution, can be valid. To deny this, would be to affirm, that the deputy is greater than his principal; that the servant is above his master; that the Representatives of the People are superior to the People themselves; that men acting by virtue of powers, may do not only what their powers do not authorize, but what they forbid. If it be said that the Legislative body are themselves the constitutional judges of their own powers, and that the construction they put upon them is conclusive upon the other departments, it may be answered, that this cannot be the natural presumption, where it is not to be collected from any particular provisions … Continue reading