How did the invention of the vacuum cleaner impact the 1920s?
There are a number of factors involved here, but if the refrigerator is kept closed, the prawns should be OK for at least 4 hours.
What invention replaced the vacuum cleaner?
Answer The Medical College of the University of Wisconsin says a fresh turkey can be kept, uncooked, in your refrigerator for no more than 2 days.
Whom can you thank for the invention of the vacuum cleaner?
A vacuum cleaner uses 800 W of power The voltage source is 100 V What is the current flowing through the vacuum cleaner?
How does the fan inside a vacuum cleaner cause the vacuum cleaner to pick up dirt?
The fan powered by a motor creates suction which pulls the dust into nozzle (head) into the bag, filters or cyclones.