CallistaBoard

A prickly pear contains many, many different toxins, and is very harmful to eat raw, lest you want a hole through your stomach and your skin bubbling like oil on a pan. First, put it into a food processer, and turn it into a fine puree. Now, boil the puree, and strain out the liquid. Dilute it with water for a ratio of 1-3. Set this aside for later use or feed it to your worst enemy. Now, due to massive deforestation of the Amazon and African rainforests, harmful industrial materials are also included in here, such as Thallium, which we neutralize out with Prussian blue, however we cannot guarantee your stomach acid will not react with it. At this time, inject the pear mush with the diluted liquid, and apply potassium iodine for any possible toxins floating around in there, dry the mixture in an oven at 310 degrees farenheit for 5 hours, take out, and either put the powder in water for a nice prickly pear juice, or shape it into a prickly pear again, and consume.

Today, per requested, we will be making a VTOL cow. We will start using the basic framework Rolls Royce Pegasus thrust vectoring engines. In order to counteract any cow jiggling, we will secure it in the middle of a gyroscope, which we will then power using a shaft from the engines, making the cow spin around like jerky, all while stabilizing the craft parallel to the ground with it, drastically reducing the "recoil". Further reinforcing brackets based on the z-axis may be required.
Now, we know every single airworthy object needs to have an airframe, or out cow will become mush when entering the transonic region, so we will use ball bearings to secure a cone to the y-axis of the gyroscope, both to protect our cow(just slightly, the vacumn will still fill), but also for aerodynamic efficiency.
Next, we need to control our new flesh aircraft. Because wings would be unnecessary, we will be using JATO control rockets for roll and pitch, similar to what would happen in space or hovering ascent or descent. However, yaw presents a problem because of out large cone in front. With no tail plane, we will sooner or later enter a tailspin. So, we add a slab of wing surface right behind and perpendicular to the cone but above of it, that way, diverted airflow will pass through the tailplane. (our engines have intake from under them or through controlled inlets)
Now, every aircraft needs weaponry. To pay a tribute to our now gutted harrier jet that donated its guts, we will attach hydra rocket pods onto the contraption, and we have successfuly made a flying attack cow!

Every slap by a 12 year old kid delivers 12500 joules, or 25000 newtons. Most of that is transfered into a normal force exerted by the chicken which will counteract by about 24000 newtons, and the rest is static friction. If your hand happens to slide, that will be -1000 kinetic friction, which will warm up the chicken by 500 joules, and it takes 150,000 joules of evenly distributed force on chicken to prevent salmonella and cook the chicken to warming temperature, so around 1500 slaps.

Umm....Well, let's start with da basics.
There are 422 micrograms, which is er..... 1/1,000,000 of a gram
You can consume around 4000mg of POTASSIUM every day.
Around 6000, wikipedia describes effects as below:
In some people, potassium can cause stomach upset, nausea, diarrhea, vomiting, or intestinal gas. Too much potassium is UNSAFE and can cause feelings of burning or tingling, generalized weakness, paralysis, mental confusion, low blood pressure, irregular heart rhythm, or death.
Hmmm. Not so fun isn't it? But it's only a fraction.
Let's raise it to 7000.
At this level, we have reached a lot of potassium, and quite certain to cause death. While it certainly isn't polonium, we can conclude that you can eat 16 bananas before suffering any serious issues.
which I just did.....