Eggs have an air pocket in them, the air tries to get up and out of the water because air is less dense than water.
no, Actually yes, for me, today is the vernal equinox. In chemistry class my teacher informed the class that today is the day to stand eggs on end, and I've made 5 eggs stand on end already.
numerical statistics behind boiled-eggs
Add cheese. Also, if you are boiling eggs and don't want the shell to stick as much, add some vegetable oil to the boiling water.
of Poach
once the water is boiling, place the eggs in for about 6 minutes for a hard boiled egg. if want more runny 1 min earlier
boiling water
Boiling Points ended on 2005-01-01.
This depends on how 'hard' you want the eggs to be. Some people put the eggs into a pan of boiling water (so that the eggs are covered) and keep the water boiling for 3 or 4 minutes. Others prefer to put the eggs into cold water (again, so that they are covered) and bring the water to the boil, and keep it boiling for 1 or 2 minutes. (I prefer to put them into boiling water) If you want to ensure that the shells don't crack during the process, you can push a sharp pin into the round end of the egg. There's a little air-pocket in there which can expand when the egg gets hot, cracking the shell. You don't need to push in too far, but do it gently. When the time is up you can either eat the eggs hot, or - if you want them cold for salads - you should plunge them into cold water, or into ice. This stops the yolk of the egg developing a black edge to it.
yes in facct they can inside there mouth is a substans with the texture of rubber and can with stand boiling water
You can judge the age and health of the egg by dropping it in a body of water. A fresh egg will sink and lie flat on the bottom of the glass, slightly older will bob a little bit, still older will stand on the end and a rotten egg will float on the surface! Fresh eggs' shells are rough and chalky while old eggs' shells are smooth and shiny.You can read more egg tips at: http://desigram.com/pages/articles/Food/Cooking-Tips/Eggs-Tips.html
A retort stand is to hold a test tube/ boiling tube. 1. Turn the side knob( by the "t" on the retort stand) and release it. 2. Put the test tube/boiling tube in the test tube/boiling tube holder. 3. TIGHTEN the side knob ( if not the test tube/ boiling tube will drop). 4. Adjust the height of the retort stand by turining the most corner knob. (if you need to)
The Kelvin scale.