Meaningful info on Subsurface Engraving Machine

Looking for information about Subsurface Engraving Machine? You will find the information below very helpful.
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3 Responses to “Meaningful info on Subsurface Engraving Machine”

1. fenx says:

   December 19, 2010 at 7:46 am

   Yes. Check with your local State Soil Association. Also, a good book on hydrology can be helpful for modeling this natural event. There are also some reasonable priced hydrology programs on the web. The Pennsylvania State University has done some pioneering work in this particular field. You can search their website. Also note that you can get a PhD in hydrology. It’s a complicated subject.Good Luck
2. jpm896 says:

   December 19, 2010 at 7:44 pm

   From the recent Mars Odyssey mission, apparently yes. There is water in Martian soil near the equator and lower latitudes:”It has been concluded from measurements, recently made by Mars Odyssey experiments, that there is water in the upper few metres of the Martian surface at mid- and equatorial latitudes with regionally high contents of up to about 9 wt%. This Martian subsurface water is shown to be in the form of adsorption (or sorption) water. The adsorptive bond of water molecules is about twice as strong on mineral surfaces compared with on water ice. Therefore, evaporation of adsorption water in porous soil happens on time scales, which exceed those of sublimation of water ice by orders of magnitude. Consequently, sorption water can have survived in the near-surface layers of the Martian soil at mid- and equatorial latitudes over geological time scales, where ice must have been lost by sublimation. Sorption water is unfrozen, i.e. liquid-like, down to temperatures of −40°C and below. It must, at least regionally and temporarily, be an important and not a trace constituent of the upper-surface Martian soil. The presence of liquid-like sorption water on Mars is also discussed in view of exobiological implications.”
3. Beast Mode™ says:

   December 20, 2010 at 7:56 am

   Dude i just searched cartesian diver on yahoo and a bunch of these experiments popped up. They are all the same too so yea. Try this one. Cartesian DiverScuba divers have to control their depth in the water. Since the human body is less dense than water, people float. A diver wears two pieces of equipment: a weigh belt and a buoyancy compensator. The heavy metal weights on the belt enable the diver to sink. The buoyancy compensator can be inflated with air to increase buoyancy or deflated to reduce it.Here’s an experiment to help you see how this works.Tools & Materials A plastic fizzy-drink bottle A pen lid with no holes in the top Waterproof modeling clay (Plasticine) Water A bowl or bucket The ExperimentHalf fill the bowl with water. Roll some clay into a ball the size of a marble. Stick the clay to the pointed end of the pen lid. Gently lower the ‘diver’ into the bowl of water so that the lid remains full of air. If the diver sinks, remove some clay. If it floats, add some more clay. Adjust the amount of clay until the top of the pen lid only just sticks out of the water. The experiment will not work unless the amount of clay is just right. Fill the plastic bottle to the brim.Gently lower the diver into the bottle. Screw on the lid. Check that the only air inside the bottle is in the diver. If you squeeze the sides of the bottle, the diver should sink. If you stop squeezing, the diver should float back to the top of the bottle. If the diver does not sink when you squeeze really hard, you need to add more clay.If you are careful, you may be able to make the diver sink to the middle of the bottle, then just hover in the water.Try these ideasWhat happens if you add salt to the water? What happens if you use a bottle with an oval cross-section and squeeze across the widest part of the bottle? Instead of using a pen lid and clay, use a medicine dropper. Fill it with enough water so it just floats. http://www.seed.slb.com/en/scictr/lab/diver/index.htm