A girl calls Jerry and tells him she needs to be in town for a conference but can't find a decent hotel room in Manhattan. George and Kramer say that these are signals. The girl arrives, and sends many additional signals (at least Jerry thinks she does), but ultimately tells Jerry that she's engaged. What Jerry needs is a screening device.
Chuck Yeager finally breaks the sound barrier while piloting an aircraft. The people on the ground initially believe that the sonic boom was Chuck crashing but soon realize that Chuck was successful in his attempt to break the sound barrier.
In Kitty Hawk, North Carolina in 1903, Wilbur and Orville Wright are ready for their first attempt at powered flight. The two brothers take turns piloting the plane during different trial runs. They eventually fly their powered airplane successfully for 59 seconds.