I am sure advancements have been made. Likebi said that was 40 years ago. The tool my BIL used looked like a modern hand held submersible mixer. Of course methods changed according to cuase of death. Here's another shocker for ya. When a body is cremated they burn the flesh till only bones remain and then grind the bones into the "ashes" that are left. I learned this a few years ago when my mom passed and we had her cremated. They gave us a tour of the facility and explained the process. Kinda gave me the heeby jeebies. I was glad they did it after mom was prepared cuz I think my sister that was with me would of had hard time dealing with it before. Like I said, kinda creepy. I forget how many hours they said it would take burn the bones but it was substantially more.