A cup of water waits. Air is already pushing on everything.
What is pushing?
A cup of water waits. A card sits beside it.
Cover the cup, turn it. Air is already pushing on the card.
Arrows under the card are a drawing of air's push. They are not a breeze you could feel. Drag the card to let air in.
The card is holding. The cup is upside down. What is pushing?
You can try this.
Notice
The card is not glued. Water is not a magnet.
Something you cannot see is pushing on the card from below.
The space we call empty is full of air.
What do you predict?
If a little air leaks in under the card, will the card keep holding?
If air is pushing on the card, what is it doing to you right now?
24|42