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The purple and red bubbles each have a density that is lower than the surrounding water, so they float at the very top of the thermometer. The blue and yellow bubbles (60 and 65 degrees, respectively) are calibrated so that they have higher densities than the water at this temperature, so they sink. Since the surrounding air is 70 degrees, we know the water inside the thermometer is also about 70 degrees. Now, let's say the temperature in the room is 70 degrees. APFS support is being released as a public. DOES MACDIVE WORK WELL WITH THE GALILEO LUNA WINDOWSWith MacDrive, your APFS disks appear in Windows with their own drive letter, allowing you to read files directly using your favorite Windows apps, as well as copy files from the disk to your PC. The blue bubble (60 degrees) is the heaviest (densest) bubble, and each bubble thereafter is slightly lighter, with the red bubble being the lightest. MacDrive 10.5 + APFS (beta) adds the ability to read disks formatted with Apple’s new file system, APFS. ![]() Let's say there are five bubbles in the thermometer:Ī yellow bubble that represents 65 degreesĪ green bubble that represents 70 degreesĪ purple bubble that represents 75 degrees The bubble that sinks the most indicates the approximate current temperature. So, at any given density, some of the bubbles will float and others will sink. ![]() As the temperature of the water changes, it either expands or contracts, thereby changing its density. The basic idea is that as the temperature of the air outside the thermometer changes, so does the temperature of the water surrounding the bubbles. It is the downward force of gravity that makes this thermometer work. If you have read this question, then you know that an object immersed in a fluid experiences two major forces: the downward pull of gravity and the upward push of buoyancy. So, after the weighted tags are attached to the bubbles,each differs very slightly in density (the ratio of mass to volume) from the other bubbles, and the density of all of them is very close to the density of the surrounding water. The bubbles are calibrated by adding a certain amount of fluid to them so that they have the exact same density. Since the bubbles are all hand-blown glass, they aren't exactly the same size and shape. The weight of each tag is slightly different from the others. These metal tags are actually calibrated counterweights. A number and degree symbol are engraved in the tag. This liquid mixture may contain alcohol, or it might simply be water with food coloring.Īttached to each bubble is a little metal tag that indicates a temperature. The Luna or Uwatec products are not mac-compatible, we are waiting for them to catch up to the possibility that there are other platforms that use their products. DOES MACDIVE WORK WELL WITH THE GALILEO LUNA MACThe bubbles are glass spheres filled with a colored liquid mixture. The ONLY way is work with the Luna on a Mac is through Parallels or VWare. The Galileo thermometer consists of a sealed glass tube that is filled with water and several floating bubbles. A simple, fairly accurate thermometer, today it is mostly used as decoration. Here is the first one.Based on a thermoscope invented by Galileo Galilei in the early 1600s, the thermometer on your co-worker's desk is called a Galileo thermometer. I hope to look at the Moon a few more times with the Galileoscope and perhaps improve my sketches as I go along. ![]() Get a copy of Galileo's Sidereus Nuncius, published in 1610, and you will see that it is as fresh and clear as if it were written last week. Part of Galileo's genius was that he could draw conclusions from his observations that made sense of what he saw. (I feel sure that experieced lunar observers will recognize those craters immediately, especially the one with the central peak) Earthshine rounded out the rest of the lunar disk. What to the unaided eye appeared to be a bright and featureless crescent was revealed to be covered with a textured roughness dominated by three big craters on the terminator, one of which included a gleaming central peak. ![]() My little scope practically dropped the Moon in my lap. To my surprise, I had the same sense of astonishment that Galileo must have felt when he began studying Luna through the original Galileoscope. DOES MACDIVE WORK WELL WITH THE GALILEO LUNA INSTALLEasy to install to your first stage regulator HP port. Using the transmitter will give you vital information on air consumption and dive time remaining in respects to air time remaining. Tonight, as I was waiting to make a Jupiter observation, I turned the Galileoscope on the thin waxing crescent Moon just before it disappeared behind the ridge to my west. This Uwatec transmitter will work with the Galileo Luna/Sol Computers that are air integrated. I have begun a project observing Jupiter and its moons which I will post the results of when I've made a few more observations. I also wanted to see what Galileo, the godfather of visual astronomers and astrosketchers, saw when he turned his handmade telescope to the heavens. Despairing of ever having clear skies again, I dug out my Galileoscope (which I purchased a year ago) and put it together, hoping to take advantage of brief periods of cloudless sky with this little grab and go plastic telescope on a camera tripod. ![]()
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