Removed spaces from top-level directory names.

Spaces tend to cause annoyances in a Unix-style shell environment.
This change fixes that.

52_Kinema/python/README.md

@@ -0,0 +1,3 @@
+Original source downloaded [from Vintage Basic](http://www.vintage-basic.net/games.html)
+
+Conversion to [Python](https://www.python.org/about/)

52_Kinema/python/kinema.py

@@ -0,0 +1,89 @@
+"""
+KINEMA
+
+A kinematics physics quiz.
+
+Ported by Dave LeCompte
+"""
+
+import random
+
+# We approximate gravity from 9.8 meters/second squared to 10, which
+# is only off by about 2%. 10 is also a lot easier for people to use
+# for mental math.
+
+g = 10
+
+# We only expect the student to get within this percentage of the
+# correct answer. This isn't rocket science.
+
+EXPECTED_ACCURACY_PERCENT = 15
+
+
+def print_with_tab(spaces_count, msg):
+    if spaces_count > 0:
+        spaces = " " * spaces_count
+    else:
+        spaces = ""
+    print(spaces + msg)
+
+
+def do_quiz():
+    print()
+    print()
+    num_questions_correct = 0
+
+    # pick random initial velocity
+    v0 = random.randint(5, 40)
+    print(f"A BALL IS THROWN UPWARDS AT {v0} METERS PER SECOND.")
+    print()
+
+    answer = v0 ** 2 / (2 * g)
+    num_questions_correct += ask_player("HOW HIGH WILL IT GO (IN METERS)?", answer)
+
+    answer = 2 * v0 / g
+    num_questions_correct += ask_player(
+        "HOW LONG UNTIL IT RETURNS (IN SECONDS)?", answer
+    )
+
+    t = 1 + random.randint(0, 2 * v0) // g
+    answer = v0 - g * t
+    num_questions_correct += ask_player(
+        f"WHAT WILL ITS VELOCITY BE AFTER {t} SECONDS?", answer
+    )
+
+    print()
+    print(f"{num_questions_correct} right out of 3.")
+    if num_questions_correct >= 2:
+        print("  NOT BAD.")
+
+
+def ask_player(question, answer):
+    print(question)
+    player_answer = float(input())
+
+    accuracy_frac = EXPECTED_ACCURACY_PERCENT / 100.0
+    if abs((player_answer - answer) / answer) < accuracy_frac:
+        print("CLOSE ENOUGH.")
+        score = 1
+    else:
+        print("NOT EVEN CLOSE....")
+        score = 0
+    print(f"CORRECT ANSWER IS {answer}")
+    print()
+    return score
+
+
+def main():
+    print_with_tab(33, "KINEMA")
+    print_with_tab(15, "CREATIVE COMPUTING  MORRISTOWN, NEW JERSEY")
+    print()
+    print()
+    print()
+
+    while True:
+        do_quiz()
+
+
+if __name__ == "__main__":
+    main()