Yes, there would be shadows on Mars at noon. The intensity and length of the shadows would depend on the angle of the sunlight hitting the surface. Mars has a thin atmosphere, so shadows may appear sharper and darker compared to Earth.
Sharper!
Shadows on a sunny day will be sharper and more defined due to the direct sunlight, while shadows on a dull day will be softer and less distinct because of the diffused light from the clouds. The difference in shadows is due to the amount and direction of light hitting objects, affecting their contrast and sharpness.
Probably a lot!
The clarity of shadows can be influenced by factors such as the angle of light, the size and shape of the object casting the shadow, the distance between the object and the surface where the shadow falls, and the properties of the surface itself. Shadows will be sharper and more defined when light is direct, the object is close to the surface, and the surface is smooth and uniform.
The duration of Dead Men Don't Make Shadows is 1.38 hours.
To make a smaller and sharper shadow without moving the object, you can adjust the light source. Bring the light closer to the object or use a more focused light such as a spotlight. This will create a smaller shadow with sharper edges.
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Make the hole smaller.
I understand that the closer the object to the light source the sharper the shadow and visa versa or depending on the intensity of the light source the more intense the light the sharper the shadow. However I have recently had a shadow problem that has made me question this. I have tried 3 different materials of almost equal dimensions and found that out of the 3 materials (cardboard, wood, aluminum) I found that aluminum produces a significantly sharper shadow. I can not explain this.......
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Shadows give us information about shapes of objects. Sometimes, shadows can also mislead us about the shape of the object. :)