Pull yellow disk, turn it to a new position and push it back to shift grey gear block through rack-pinion drives. Position devices are not shown. Key factor is various …
This bell curve graph shows how the distribution of Northern Hemisphere summer temperature anomalies has shifted toward an increase in hot summers. The seasonal mean temperature for the entire base …
Input: green shaft carrying three gears. Output: pink hollow shaft in which orange shaft slides. The pink and orange shafts rotate together owing cyan key, that has a revolution joint …
Input: the green shaft to which 2 gears are fixed. Output: the orange shaft on which a block of 2 gears can slide (key sliding joint). Move the blue bar …
Input: the green shaft to which 3 gears (green and cyan) are fixed. Output: the blue shaft on which a block of 3 gears (red, yellow and orange) can slide …
The violet lever can turn in vertical and horizotal planes to control two racks carrying shifting forks. Each rack has 3 working positions. The control lever pushes or pulls the …
Input: green shaft with four gears fixed on it. Output: pink shaft, that has a cylindrical joint with blue angle crank. Yellow gear has sliding key joint with the pink …
Input: green shaft with two green gears fixed on it. Yellow shaft is fixed immobile. Blocks of two pink gears rotate idly on the green and yellow shafts. These blocks …
Input: green shaft with four gears fixed on it. Output: red shaft with pink, violet, yellow and blue gears rotating idly on it. The gears are permanently in mesh. The …
Earth’s magnetic field is constantly shifting, and roughly every 200,000 to 300,000 years it flips north and south completely. We’re currently overdue for a switcheroo—and scientists now say it could …