At the point where I suspect thereâs a doorway, itâs quite gritty.â. Howard Carter discovered King Tut's tomb in 1922, but the mystery of Tut's death and possible murder lives on. Howard Carter discovered King Tut's tomb in 1922, but the mystery of Tut's death and possible murder lives on. This gritty material matches fragments that originally covered another blocked door opened by Howard Carter in 1922.
It's the green parts of the potato that cause the problems. And whilst it is indeed poisonous to the horse, it's not the same as ragwort, though that gets to be a pointless argument if your horse is seriously ill through any sort of poisoning!
Use a potato. The oxalic acid in potatoes helps remove the buildup of rust. This method is especially useful for smaller rusted items, such as knives. There are two ways you can use a potato to remove rust: Simply stab the knife into potato and wait a day or overnight.