Possible Clues:

• Violent upheaval of the earth's surface
• Upward force that liquid or gas exerts on body floating in it
• Upward force that liquid or gas exerts on body floating on it
• Riding by way of street required for taking off vertically
• Increase confidence around hospital — it makes for buoyancy
• Excited hearts, in faith, plenty of which at NASA launch
• Push skyward
• Force a fluid exerts on floating body
• Raised to higher level at university, badly hurt on way