| 1 | Isaac and Daniel joked about this throughout the trip. | |
| 2 | Both of them mocked Isaac that he was a parasite on his parents . | |
| 3 | Sir Isaac Newton supposedly discovered gravity through the fall of an apple. | |
| 4 | It always falls down. That's how the apple helped Isaac Newton. | |
| 5 | What Sir Isaac Newton was doing late at night may surprise you. |