Earth is spherical/spheroid shaped

It thought I'd give my opponent another chance to give a refutation of these, since this is a rematch, he should be familiar with them. That and I don't have the patience to type another opener due to our last match. I may add more to the list in a later round.Contention one. The specular highlightAnyone who celebrates Christmas can verify this. Have a look at the glass balls on your tree this year, most of us have them up right now, so have no excuse not to perform this simple, empirical experiment. Take a glass ball and make a right triangle with the observers eye at A, the ball at B, and a light source at C. (1) This is where we are in relation to the sun at the time of sunset.(6) Do you see the light reflected in the ball? Of course not! This is because spherical objects, or convex surfaces produce a specular reflection, whereas it points back to the source. (2,3) Not only that, but the reflection of the source appears smaller. This is why the give you that little warning on your side mirrors in the car. Sure you might can cheat a little with the relative distances and angles, and you might even get a hint of the reflection, but you'll never be able to reproduce this image. (4) Water is highly reflective, just like glass, or sheet metal. So let's try to reproduce this image with these reflective materials. Hold a flattened piece of sheet metal or like material up to the eye, and point the other end, as if you were aiming a rifle, up to a light source. The results are very much like the sunset. (5) We now have an empirically experimentally (objective) proof that the earth is flat.Contention two: The Chicago SkylineJoshua Nowicki has been photographing the Chicago skyline for a few years now. This would be impossible if he were doing so on a ball that is 25,000 miles in circumference. (7) Modern science tells us that this is a mirage, but again, anyone who's actually seen a mirage, superior or otherwise, will agree that mirages are just "reflections" most of the time they are greatly distorted, and always upside down. Granted, visibility factors such as atmospheric blocking and waves and swells on lake Michigan sometimes do not grant this sight always, but the skyline is seen on a regular basis. (9) This isn't the only instance of people being able to see further than they should, in fact, people are recently testing the globe, and the flatness of water to see landmarks that should be well over the curvature of the earth, and every time this test is done, no curvature can be found. This can be done easily if there is a fairly large body of water near you. All you need is a decent camera and the earth curvature calculator(10). This is yet another (objective) empirical proof that the earth is flat.Contention three: GyroscopesDefinition from Wikipedia: "A gyroscope, not to be confused with gyrocompass, is a spinning wheel mounted on a gimbal so that the wheel's axis is free to orient itself in any way. When it is spun up to speed with its axis pointing in some direction, due to the law of conservation of angular momentum, such a wheel will normally maintain its original orientation to a fixed point in outer space (not to a fixed point on Earth). Since our planet rotates, it appears to a stationary observer on Earth that a gyroscope's axis is completing a full rotation once every 24 hours." (11) Anyone who has ever owned a gyroscope can verify that they do verify that they do very curious things, even seemingly defying "gravity" sometimes. This experiment show both that the earth is NOT rotating, and can't be a ball. Gyroscopes have been spun up for hours at a time, and not even the slightest of rotations can be observed. (12) Attitude indicators operate by use of a basic gyroscope. (13) If the earth were a ball, spinning, wobbling, going around the sun, which is bolting around our galaxy, that is rocketing around the universe at a combined rate of about 1,000 miles per second, they would be virtually useless, especially on transcontinental flights. Some higher end smart phones are equipped with a built in gyroscope. If yours has one, download any decent pitch indicator, and leave it on your night stand when you go to bed. Wake up in the morning and see for yourself that the phone has not moved or changed it's angle the entire time. Since your average person can get a good gyro and produce these same results, this is another (objective) empirically experimental proof that the earth is flat.https://www.scratchapixel.com...https://upload.wikimedia.org...http://www.laurelleaffarm.com...https://s-media-cache-ak0.pinimg.com...http://www.debate.org...https://upload.wikimedia.org...https://youtu.be...http://aty.sdsu.edu...https://joshuanowicki.smugmug.com...https://dizzib.github.io...https://en.m.wikipedia.org...https://youtu.be...https://youtu.be...