Are heated sapphires still valuable?

Are heated sapphires still valuable? Fine gem-quality, sapphires that have been treated by heat have also increased in value due to demand, but not as significantly. A fine quality sapphire, whether natural or heated is a good purchase. Can you heat treat sapphires at home? If your sapphire has good clarity and a color you […]

Why is south facing garden better than north?

Why is south facing garden better than north? The main advantage of a south-facing house or garden is the amount of sunlight you’ll enjoy. As the sun rises in the east and sets in the west, the south side of any house will see the most hours of sunlight during the day – especially in […]

What causes trichromatic vision?

What causes trichromatic vision? The normal explanation of trichromacy is that the organism’s retina contains three types of color receptors (called cone cells in vertebrates) with different absorption spectra. In actuality the number of such receptor types may be greater than three, since different types may be active at different light intensities. What causes Tetrachromatic […]

Why is water called a universal solution?

Why is water called a universal solution? Water is capable of dissolving a variety of different substances, which is why it is such a good solvent. And, water is called the “universal solvent” because it dissolves more substances than any other liquid. This allows the water molecule to become attracted to many other different types […]

Can I use 100x without oil?

Can I use 100x without oil? Never use the 100x objective without using immersion oil. When you have correctly brought your slide into focus up to 40x (step 3), then: a. Turn the nosepiece half-way between the 40x and 100x objectives. Immersion oil should never be put on any other objective than the 100x! What […]

Is Mega 10 6?

Is Mega 10 6? Mega is a unit prefix in metric systems of units denoting a factor of one million (106 or 1000000). It has the unit symbol M. It was confirmed for use in the International System of Units (SI) in 1960. What is this number 1000000000000000000000000? Some Very Big, and Very Small Numbers […]

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