For silage corn the entire plant is harvested, chopped up, and packed tightly in a pile and covered with plastic or very large plastic bag. This creates an anaerobic conditions and yeasts/bacteria convert the sugars to alcohol, then acids. This acid preserves the feed for cattle for up to 2 years.
Silage corn is the most common base feed for all dairies and feedlots.
This isn't even the tallest variety out there. There are others that are 3' (1m) taller.
The machine with the spout is a chopper. They are a million dollar gigantic woodchipper. These things are fucking terrifying and you should absolutely stay out the field when they are running. Every so often a deer jumps into them.....shudder.... nightmare fuel.
Remember the only qualification to become a parent is functional gonads. No education, training, or proof of competency and aptitude is required.
Which is why shit parents often resort to physically assaulting their children. It's because the are too ignorant of actual parenting techniques and methods to know otherwise.
"My parents spanked me and I turned out fine"...
No you fucking idiot, you did not turn out fine. You are beating a helpless child because you don't know shit about parenting.