later on the used flat stones in sand to grind the stone to make a polished surface we will see you later on that this is also how the egyptians thousands of years before this made their flat surface granite monuments like obelisk stand as we will see later when we look at egypt's has extremely hard particles in it and if place between a flat surface in iraq can polish even the heart of stones known to man the harder the stone is the better it can be polished using sand we will also see house and can turn a piece of copper into a very efficient granites are or granite drill and that that which the egyptians utilized quite well sandstones approval conclude that agent aliens would never show the cameras are the ones that are in the middle of this process they show that at the same time a stone was being pounded by stone hammers which created these trough like depressions the grinding and polishing was taking place on the other end of the stone unfinished owns like this one clearly show how they were shaped and it wasn't with lasers there's also unmistakable evidence of stone hammers having been used in places that were never meant to be visible like we're certain stones would be connected with one another and because of that it's hard for me to believe you're going down again in this next clip because that would mean that the airlie in toolbox had a laser gun right next to a stone hammer a sucess hillside dissipation stansky only a small space-based weapons complex piece of the just to protect instruments teammate overnight we can take a moment it would be called based costly out sparked the because you don't want graphite hot sauces there is an issue a wala off their base camp dispute there it is true that still draws would not be enough to construct from the bronco especially for some of the finer points for that they would need medal chisels and the equivalent of a carpenter square entire studies have been done detailing how these cuts were made and nothing spectacular is required accepts a medal tools like chisels the arguments against this are usually either that a particular coulter did not yet know how to cast metals or that copper chisels would have been too weak on the first point we know that the pre inc in indian culture was very skilled at fashioning medals and creating metal alloys in fact the people who built a local group were even pouring copper alloys into molds right on site showing that they had more than enough capability to form all kinds of metal tools but the question is what about the tools strength well even if they were pouring pure copper into a mold it would still work but it would need sharpening often but because archaeologists actually found a few of these metal cramps used by them onsite we now know that they were using a very strong copper arsenic nickel alloy which made a much stronger final product arsenic axes d oxidant preventing the medal from becoming too brutal and nicole was used in copper alloys specifically to make strong chisels once you understand that they had the ability to make strong metal tools in a huge variety of shapes there is no part of probable crews still work they would have been too difficult for them well what about these ninety degree right angles that ancient aliens make so much about one of the amazing thing sir if ronald reagan precision of the blocks can see that as part of her and it that it's really been cut dairy accurate right to make flat services with right angles you don't need an alien technology you only need two square or simple equivalent it's important to keep in mind that boom boom grew would have been built thousands of years after the egyptians who had all kinds of squares and plum bobs in levels and so on it's a pretty basic stone working tool that being said despite what ancient alien says political guru is not all perfect right angles you can even see this ironically enough as the ancient alien screw goes around with carpenter squares you can see that some of them are simply not square also they make claims like all the h blocks are the same dimensions which they say suggest that they were made by a big machine but not only would that not be the only conclusion if it were true it's not even true the dimensions of the h blocs are not all the same though they are close it's probably the case that they were made using the same plans speaking of plans mainstream archaeologists say coolant tumko was built by the i'm mara indians and we would all have to agree third quarter to build something like come upon cool unique writing unit planning and you need some sort of a idea rear which peace goals and how important 