mabey
emile roux
Who was Louis Pasture's faithful assistant
Showed that sterile broth remained free of microorganisms until exposed to air.
War and rivalry , technology , government , scientific understanding
why are vacuum flasks called vacuum flask
IS IS
There is no meaning of conical flasks. They have uses.
Marie Laurent
mabey
pasturization
emile roux
The round bottoms on these types of flasks allow more uniform heating and/or boiling of liquid. Thus, round-bottom flasks are used in a variety of applications where the contents are heated or boiled. Round-bottom flasks are usually used in distillation by chemists as distilling flasks and receiving flasks for the distillate One-neck round-bottom flasks are used as the distilling flasks in rotary evaporators.This flask shape is also more resistant to fracturing under vacuum, as a sphere more evenly distributes stress across its surface.
heart
John Need-ham heated broth in sealed flasks in 1745
A person can get cheap flasks at the nearby stores such as Wal-Mart, Target, K-Mart, and other stores like Staples. A person can also research where to find flasks and get them.
the heat may not be distributed uniformly if solids are heated in beakers or flasks