Oh don't give me that. I wasn't home for the rain yesterday, but I'm pretty sure that's what caused the erosion in the dirt portion of my back yard. Do you have a better explanation for the erosion? Or should I just say "God caused that erosion magically appear."?
Manmade arches are supported during construction by other bracing, precisely because the parts won't stay in place until they are all in position.
That is our method of construction. It's quick and efficient with materials. We tend to build up.
Nature doesn't have to be quick. Take a bunch of rocks and dirt, or some solid rock, run a stream under the middle. Make the stream bigger, let it start dislodging some rocks, let it flood at times. Eventually there's a good chance you'll have formed an arch as the remaining rocks compress against each other as they try to fall down. It's not going to happen every time of course, but out of the many instances with these conditions you'll get a lot of arches. This is also known as a natural bridge. Arches also naturally occur on coastlines and in caves.
I used to let the waves create these natural arches on the beach when I was a kid. It's pretty easy.
What would you conclude upon seeing the equivalent of the Arch de Triumph on Mars
Ask me again when I actually see it.
The rain eroded a stone block arch in your back yard yesterday? That is amazing. I think you might want to put up a security cam.
Nature doesn't have to be quick. Take a bunch of rocks and dirt, or some solid rock, run a stream under the middle. Make the stream bigger, let it start dislodging some rocks, let it flood at times. Eventually there's a good chance you'll have formed an arch as the remaining rocks compress against each other as they try to fall down. It's not going to happen every time of course, but out of the many instances with these conditions you'll get a lot of arches. This is also known as a natural bridge. Arches also naturally occur on coastlines and in caves.
Apples, oranges and other senseless comparisons. Show me the natural arch that looks like the Arch de Triumph and not just a keyhole cut.
I used to let the waves create these natural arches on the beach when I was a kid. It's pretty easy.
Again, you might want to purchase a security cam, if you're getting stone block arches on the beach with wave action.
Ask me again when I actually see it.
Right, because a man is far less complicated than a stone block arch. I know what you would say, because those that refuse to answer in the hypothetical have already dedicated themselves to ignore or shrug off any evidence. You must be very insecure to not even be able to acknowledge that you would find such a thing as the Arch de Triumph on Mars to be incapable of natural origin.