Based on the assumption that the earth was round, Columbus’s goal was to find a shorter way to India by going west instead of east. He encountered America instead of India. Discuss the discovery of America by Columbus using the terminology and issues introduced in this chapter.
What will be an ideal response?
Columbus and his contemporaries thought he succeeded in discovering a new route to India. From his perspective, he
succeeded. Later, after maritime routes around Africa were discovered and when Magellan’s crew circumvented the
globe, it became clear that Columbus had found a new continent. In the terminology introduced in Chapter 1, this is
also an example of how a theory is devised, validated, and falsified, as knowledge is accumulated and tested against
the theory.
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Which of the following is not a floating point data type in C?
a. float b. double c. long d. long double e. none of the above
For one bridge there should not be more than 4 participants in one team.
Material: ? 2-4 large buckets of Lego building bricks (2 for each team) ? Two tables that can be placed in a way that there is up to 150 cm distance between them (the width of the river) Schedule: ? 30 minutes for planning and prototyping (prototyping) ? 5 minutes for the final build from scratch (construction) ? 20 minutes for summary and discussion
Any text entered into a cell of the worksheet is called a(n) _____.
A. label B. value C. entry D. string
Is there any output from sleep? Where does cat get its input from? What has to happen before the shell will display a prompt?
Enter the following command: $ sleep 30 | cat /etc/services