Eh udah lama nih kagak nulis cerita di blog. Tapi sekarang kondisinye udeh beda lagi. Kalo dulu statusnye masih mahasiswa terus berubah jadi pemburu kerja, sekarang udeh jadi setengah karyawan.
Nutrient Film Technique or NFT is a hydroponic technique whereby a very shallow stream of water containing all the dissolved nutrients required for plant growth is recirculated past the bare roots of plants in a watertight gully, also known as channels. Ideally, the depth of the recirculating stream should be very shallow, little more than a film of water, hence the name 'nutrient film'. This ensures that the thick root mat, which develops in the bottom of the channel, has an upper surface which, although moist, is in the air.
A greenhouse is a structure with a different types of covering materials, like glass or plastic roof and frequently glass or plastic walls; it heats up because incoming visible solar radiation (for which the glass is transparent) from the sun is absorbed by plants, soil, and other things inside the building.
Ebb and flow is one of the most preferred ways of doing Hydroponics gardening. This system is active as well as recovery type. Also known as flood and drain this system is quite easy to understand. The plant is kept in a reservoir containing nutrient solution. When the pump is started the nutrient are pumped in to the plant. After the water reaches the determined level, it is drained in to a river while the oxygen is sucked by the roots.
Nutrient technique is also a recovery type active Hydroponic system. In this kind of hydroponics system a submersible pump is used and the roots are suspended in a grow tube. The grow tube is in such an angle that the solution of the nutrients get recycled by flowing over the roots and then coming back to the reservoir. The oxygen requirement is solved by making use of air stones or air stones. This system is highly effective and a bit difficult to build. A single mistake can cause the whole plant to dry.
This is the simplest of all active hydroponics systems. The platform that holds the plants is usually made of Styrofoam and floats directly on the nutrient solution. An air pump supplies air to the air stone that bubbles the nutrient solution and supplies oxygen to the roots of the plants. It can also called Water culture, it is the system of choice for growing leaf lettuce, which are fast growing water loving plants, making them an ideal choice for this type of hydroponics system. Very few plants other than lettuce will do well in this type of system. This type of hydroponics system is great for the classroom and is popular with teachers.
This method isprobably the most widely used type of hydroponic system in the world. Operation is simple, a timer controls a submersed pump. The timer turns the pump on and nutrient solution is dripped onto the base of each plant by a small drip line.
This method is probably the most high-tech type of hydroponics gardening. Like the N.F.T. system the growing medium is primarily air. The roots hang in the air and are misted with nutrient solution.
Lean-to greenhouses are essentially half of a traditional greenhouse building attached to a house or other building at a doorway. This type of greenhouse is generally split along the ridge line and can only be as tall as the supporting wall since they are basically cut in half. These greenhouses are useful when you have limited space available for a full greenhouse. They do have more limited space, and temperature control as well as ventilation are more difficult to maintain. This style is the least expensive type of greenhouse. The ridge of the lean-to is attached to a building using one side and an existing doorway, if available. Lean-tos are close to available electricity, water and heat. The disadvantages include some limitations on space, sunlight, ventilation, and temperature control. The height of the supporting wall limits the potential size of the lean-to. The wider the lean-to, the higher the supporting wall must be. Temperature control is more difficult because the wall that the greenhouse is built on may collect the sun's heat while the translucent cover of the greenhouse may lose heat rapidly. The lean-to should face the best direction for adequate sun exposure. Finally, consider the location of windows and doors on the supporting structure and remember that snow, ice, or heavy rain might slide off the roof or the house onto the structure.
An even-span is a full-size structure that has one gable end attached to another building . It is usually the largest and most costly option, but it provides more usable space and can be lengthened. The even-span has a better shape than a lean-to for air circulation to maintain uniform temperatures during the winter heating season. An even-span can accommodate two to three benches for growing crops. The even-span greenhouse gives you more usable space, and you can add on to the unattached end. The even-span greenhouse gives you more uniform temperature control for the greenhouse and allows more air circulation.


in Command Manager, click Circle
. As you can see on upper right corner sketch icon appear indicate that you’re on sketch mode
.
no need to be exact the size will define in later step. Press keyboard ESC to end circle sketch.
, and start dimensioning pick circle edge and set to 0.50in
. Press keyboard ESC to end smart dimension.
.

, click Normal To
.

. Click Features
and activate features menu. Click Swept Boss/Base
and set Profile to Sketch2 by click on circle sketch
and set Path by click helix path
and 

