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A vacuum allows no conduction or convection of heat, but still allows radiative transfer. The radiative component may be blocked by a reflective film. Hence your vacuum flask has a silvered finish to the evacuated double-walled container. Even so. there will still be a small conduction of heat through the necessary thermal bridge at the neck of the flask.
What else can I help you with?
Which filtration material leads to the best drinking water quality?
Activated carbon is the filtration material that leads to the best drinking water quality.
What is the best material to absorb water effectively?
The best material to absorb water effectively is a superabsorbent polymer, which can hold a large amount of water relative to its own weight.
What is the best material for absorbing water efficiently?
The best material for absorbing water efficiently is hydrogel, a superabsorbent polymer that can hold a large amount of water relative to its own weight.
Why nylon is the best material for a bath towel?
Nylon is not typically used for bath towels as it is not as absorbent or soft as materials like cotton. Cotton is the preferred material for bath towels due to its softness, absorbency, and durability.
What material is best for the handle of a kettle?
Stainless steel or heat-resistant plastic are common materials for kettle handles as they offer durability and heat resistance. The material should also provide a comfortable grip to safely handle the kettle when pouring hot liquids. Ultimately, the best material will depend on personal preference and the specific design of the kettle.
What is the best material for kites?
nylon is the best material for a kite or silk.
What is the best material for packing eggs?
The best material is NOT!!! plastic its news paper!!
What material is the best to make ladders out of?
There are many material you can use. The best material is fiberglass, but metal and wood are good substitutes.
Best material for a boat holding cargo?
the best material is wood or metal or clay
What is the best brake material for a race car?
I believe carbon fiber is the best material
What material of bowl is best for fruit?
Ceramic clay is the best material for a fruit bowl
What is the best rug material?
The best material for rug is the most simple material: wool . It is the first material used to wave the rugs and also the most resistant one
What is the best material for a tennis racquet?
For most of the best racquets used by professionals preferred material is graphite.
What material is best for a wedding ring?
Gold is best material but now a days white gold is also prefered.
What Women's Dress material is best for preventing wrinkles?
a mixed material is best such as 60% cotton and 40% polyester.
What shoe material is best for kids who are messy?
Getting a paton or nylon is the best material,which is easy to clean and maintain.
What is the best material for a flag to ensure durability and longevity?
Nylon is the best material for a flag to ensure durability and longevity.
