The person can't sense the earth is a round ball. All the houses and bridges are designed in a straight line. For the living circumstance, the world is flat. I calculate if someone on lowest cloud, the horizon the person can see is about 117km (70 miles) away. So the area is between 30km^2 to 40 km^2. The size of Michigan State is five times of that area. Well of course, in the US, everyone behaves like an independent person and know the size of their state(estate). At least,

Qi Lu, WIX-AI I am thinking about if I can use retina as a neural network to study depression. The following paragraph are generated through AI with some added knowledge from my research. The mammal eye is never truly “off.” Even in complete darkness, photoreceptors keep a steady electrical flow running. That flow, called the dark current, helps rods and cones stay ready for the next photon of light. It is one of the quiet background processes that makes vision possible. This

I am doing multichannel recording of retina from blind mice. Before recording the retina is transfected with CO3M in bipolar cells. So, the bipolar cells are the light sensor to give visual signal to ganglion cells. To achieve this purpose, checkbox or pictures are projected to the whole retina (20 mm2).