Archive for June 25th, 2009

Introduction to Hydroponics

Hydroponics was derived from the Greek word hydro, which means “water” and ponos, which means “labor or water-working”. Hydroponics gardening involves growing plants with their roots in other nutrient solutions and without soil.

Hydroponics gardening is as simple as ordinary gardening. Both of them necessitate sufficient light, water, temperature, light, and humidity. But with hydroponics, no soil is used. Instead a soil substitute holds the roots while nutrients are carried by the water. Indoor hydroponic gardening is not that hard and plants respond well to this method of growing.

This is one of the major considerations in hydroponics gardening since it sustains the plants. One has to make sure that this nutrient solution maintains a pH level of 5 to 6 after dilution. In hydroponics gardening, the plants should be watered more than three times a day. this is usually done using a pump and timer.

Simple self watering systems such as the Aquapod Watering System or the Big Drippa Watering Kit. These systems can water and feed your greenhouse or patio plants.

If your hydroponics garden is located indoors, the most suitable temperature is between 71 to 76 degrees Fahrenheit. Of course, this temperature may change depending on the different types of plant you are working on, e.g. tropical plants.

Place your plants somewhere they can receive ample amount of light. Otherwise artificial light must be used. High pressure Sodium lights or bulbs are a suitable substitute for natural light.

Humidity is good. When the room’s temperature rises, the air will be able to hold the sufficient amount of moisture your plants will need.

With hydroponics, an excellent yield of quality plants can be easily achieved. Home hydroponics systems and DIY kits are are readily available in most hardware stores.

A hydroponics system can be fully automated. Since it is water-based, the gardener has no soil to dig or weeds to pull. Also, the water can be re-used to prevent wastage.

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Review of the Canon EOS 40D

The Canon EOS 40D is a 10 megapixel SLR digital camera that saw a lot of hype prior to its release. According to users who have bought this camera, it lives up to the hype – and then some. Its DIGIC III image processor and large 3 inch LCD make it a favorite among casual photographers and professionals alike.

Users have nothing but lavish praise for this camera. The Canon EOS 40D consistently gets 5-star ratings and plenty of glowing reviews from owners. Some laud the camera’s impressive light sensitivity and its hefty size. The camera feels substantial, not like something fragile that might break with rough treatment. With the EFS 17-85 IS in place, the camera weighs in at two and a half pounds! But it does fit into the photographer’s hands naturally, and handles very well.

Professional action photographers use this camera for outdoor work and enjoy its sharpness and color identity. The camera even cleans itself every time it is turned off, thanks to an automatic sensor cleaning feature.

Some users feel that the Canon EOS 40D is more suited to advanced camera users. The sheer number of features can be intimidating. Customers recommend a lot of patience and exploration, or even the purchase of special training DVDs to help new photographers learn the ins and outs of the 40D.

Here are just a few of the Canon EOS 40D’s many features:

* 10.1 Megapixel CMOS Sensor
* DIGIC III Image Processor
* RAW, JPEG File Format
* Canon EF/EF-S Lens Mount
* Auto and Manual Focus
* Auto and Manual Exposure
* ISO 100-1600 (3200 Enhanced)
* 3.0-inch LCD
* Compact Flash Memory
* Lithium-ion Battery
* USB Cable
* Video Cable
* Neck Strap
* Battery Charger

The Canon EOS 40D is an SLR professional grade digital camera with image resolutions of 3888 x 2592,  2816 x 1880, and 1936 x 1288. It has a minimum shutter speed of 30 seconds, and a maximum shutter speed of 1/8000 seconds. Pictures can be snapped rapid-fire for excellent action shots. The EOS 40D does up to 75 images in burst mode. Its exposure controls include Auto, Manual, Daylight / Sunny (Preset), Cloudy (Preset), Fluorescent (Preset), Tungsten (Preset), Shade (Preset), and Flash (Preset).

A few critics voice disappointment that the camera kit doesn’t come with a lens hood as would be expected from a camera of this caliber. But complaints are few and far between. The Canon EOS 40D would be a great gift for a photography student, journalist, or anyone who is ready to move away from point-and-shoots. This is a real camera for real photographers.

The Canon EOS 40D retails for about $1,200 US.