A strong feature related to the (often using spinach or ivy) is the calculation of the ET50 (Estimated Time for 50% of disks to float) .
Here, (because at 12 min, 6 out of 10 disks are floating).
| Time (min) | # of disks floating | Cumulative # floating | |------------|----------------------|------------------------| | 0 | 0 | 0 | | 5 | 1 | 1 | | 10 | 3 | 4 | | | 2 | 6 (50% of 10) | | 15 | 2 | 8 | | 20 | 2 | 10 |
If the exact 50% falls between time points, you can interpolate: ET50 = Tâ + ( (0.5N â Nâ) / (Nâ â Nâ) ) Ă (Tâ â Tâ) where N = total disks, Nâ = # floating at Tâ, Nâ = # floating at Tâ. Question example: âHow does light intensity affect the rate of photosynthesis?â