This topic contains a solution. Click here to go to the answer

Author Question: How did early man make ice? What will be an ideal response? ... (Read 82 times)

Chelseaamend

  • Hero Member
  • *****
  • Posts: 545
How did early man make ice?
 
  What will be an ideal response?

Question 2

When is it believed that ice was first artificially made for food storage?
 
  What will be an ideal response?



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ms_sulzle

  • Sr. Member
  • ****
  • Posts: 320
Answer to Question 1

The ice was produced in shallow clay plates, about the size of a saucer. The water in these clay plates wept through the clay. This water dampened the small straw mats holding the clay plates in racks a few feet above the ground. The straw aided with evaporative cooling of the water. Under the right conditions a thin film of ice would form overnight on each clay plate.

Answer to Question 2

First evidence of man making ice appeared more than 3,000 years ago, about 1000 B. C.



Chelseaamend

  • Hero Member
  • *****
  • Posts: 545

ms_sulzle

  • Sr. Member
  • ****
  • Posts: 320
Always glad to help...



 

Did you know?

Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

Did you know?

The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

Did you know?

Approximately 500,000 babies are born each year in the United States to teenage mothers.

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

For a complete list of videos, visit our video library