Most vegetables do best in soil that is very high in organic matter. To increase the amount of organic matter in your soil, just add compost or manure. Before planting, apply well-decomposed compost at the rate of 40 to 60 pounds per 100 square feet of garden space. Don’t use compost or manure as a replacement for fertilizer. A healthy vegetable garden needs both.

In addition to the compost recommended above, manure can be used instead of dry fertilizer. Manures vary widely in nutrient concentration and salt content, so take care to not apply too much. Compared with chemically formulated fertilizers, manures are a less precise method of fertilization because sources of manures vary greatly in nutrient and soluble salt content. A safe applica ...

If you are into purchasing organic foods, you are likely the type of person who reads the ingredients label of everything you buy. A common food ingredient found in organic foods is citric acid. The name of the chemical reminds us of citrusy fruits, but have you ever questioned why it is used, where it comes from, or how it is produced? Or do you simply trust the ingredients of products labelled 'organic'?

Most consumers will assume that citric acid is naturally extracted from fruit sources, such as lemons and limes, and used as a "natural" alternative to chemical preservatives, but that's far from the truth. The citric acid found in jarred foods and beverages is typically manufactured in factories using a species of black mold called Asperg ...

Try imagining for a second how it'd feel to lose your eyesight. It's almost unimaginable because your vision is perhaps the most valuable tool for survival. This is why we need to constantly protect our eyes and learn what could potentially ail them. Below is a list of five common illnesses that plague the precious eyes of people around the globe.

Glaucoma

Glaucoma is damage to the optic nerve, often caused by elevated intraocular pressure. It results from excessive production of aqueous humor or diminished ocular fluid outflow. Glaucoma is a leading cause of blindness, secondary to optic nerve damage.

As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans ...

The Tunguska event was a large explosion that occurred near the Tunguska River, in where is now Russia. The explosion occurred at an altitude of 5–10 kilometres (3–6 mi) by a stony asteroid that is believed to have burst in the air rather than hitting the surface.

Since the 1908 explosion, there have been an estimated 1,000 scholarly papers (mainly in Russian) published on the Tunguska explosion. In 2013, a team of researchers led by Victor Kvasnytsya of the National Academy of Sciences of Ukraine published analysis results of micro-samples from a peat bog near the blast epicenter showing fragments that may be of meteoric origin.

Estimates of the energy of the blast range from as low as three to as high as 30 megatons of TNT. The energy of th ...

After two years of work, Martin Molin of the Swedish band Wintergatan debuted a fully custom-made machine that plays music using 2,000 marbles. The marble machine features multiple instruments including a bass guitar, cymbals, and a vibraphone all played by falling marbles. Apart from the 11 mm steel ball bearing marbles, he made all the gears powering the machine by hand.

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