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Steel is denser. Aluminum is 2700 kg/m3 Steel is 8000+/- kg/m3

Grade 33 cement doesn’t have a number of grades, but is a strength rating of the cement mix. At 28 days of curing (number of days since it was mixed and poured) it will have a minimum compressive strength of 33N/mm2.

There are two major uses that cladding has. Keep in mind that the use of rocks is just the material of choice in this case. First, cladding is used as a durable and/or protective layer over your building membrane. In older or more advanced examples it may also be or include the membrane. (The building …

Continue reading “What are the uses of rocks in construction as cladding?”

The concept of floating is called buoyancy. Basically, if the density of the object is lower than density of the material it is in it will rise until it meets an equal or lower density. This example assumes that your object is in a liquid or gas.

If you don’t include permafrost or glacier ice there is probably slightly more potable water today due to storage and filtration. This would be difficult to answer as today’s criteria for potable water is stricter than would have been used 500 years ago. As such many water sources used 500 years would be considered unsuitable …

Continue reading “Is there the same amount of potable water as there was 500 years ago?”

To respond to Mark’s analogy of organic life compared to computers: Birth – Assembly Growth – Data and/or program storage Stop growth – Data capacity Feeding – Electricity or material processing (if applicable) Self-healing – Recalibration (organic life also has a very limited ability to self-heal in proportion to damage) Reproduction – von Neuman machines; …

Continue reading “Seeing as most computers have more processing power than the brain of something like an ant, could there be an argument that computers are alive?”

If they are touching the toaster; yes. Otherwise the current will be too dispersed to cause damage to them.

In the short term, you can acquire more property with less assets by renting. (You may pay more each month, but you didn’t need a huge downpayment.) Additionally, you tend to be less liable for the same property. This means, again in the short term, that it is better for leverage and liability.

You get what is called “Well Graded Soil”. Basically, each fills in the voids left by the larger grained material.

In most cases yes. Don’t drink it if it has a different color, taste or smell. Water from a water cooler is fine for months (sometimes even years).