What does Churchill mean by "a shadow”? What is he referring to?

Based on the information given and the gauges which process or processes have their alarm light on?

How did the commercial whaling industry affect whaling practices of the makah people?

After the success of the sputnik launch, the united states feared that they would never be able to launch their own satellite, the ussr had used technology developed by the united states, the soviets had superior nuclear capabilities, that any future us satellites would not be as successful.