![Sunflowers are heliotropic, which means they turn to follow the movement of the sun east to west, here in White Hall, Maryland, USA Stock Photo - Alamy Sunflowers are heliotropic, which means they turn to follow the movement of the sun east to west, here in White Hall, Maryland, USA Stock Photo - Alamy](https://c8.alamy.com/comp/PGKH6J/sunflowers-are-heliotropic-which-means-they-turn-to-follow-the-movement-of-the-sun-east-to-west-here-in-white-hall-maryland-usa-PGKH6J.jpg)
Sunflowers are heliotropic, which means they turn to follow the movement of the sun east to west, here in White Hall, Maryland, USA Stock Photo - Alamy
![Individual little blue bird houses turn into an apartment building for birds on a farm in Maryland Stock Photo - Alamy Individual little blue bird houses turn into an apartment building for birds on a farm in Maryland Stock Photo - Alamy](https://c8.alamy.com/comp/2HM7G3K/individual-little-blue-bird-houses-turn-into-an-apartment-building-for-birds-on-a-farm-in-maryland-2HM7G3K.jpg)
Individual little blue bird houses turn into an apartment building for birds on a farm in Maryland Stock Photo - Alamy
![Maryland institute handbook . = 60 r.p.m. In case b (Fig. 15) thebelt is crossed, instead ofopen as in Fig. 15a, andthe pulleys turn in oppositedirections instead of thesame direction. Power Maryland institute handbook . = 60 r.p.m. In case b (Fig. 15) thebelt is crossed, instead ofopen as in Fig. 15a, andthe pulleys turn in oppositedirections instead of thesame direction. Power](https://c8.alamy.com/comp/2CDJW40/maryland-institute-handbook-=-60-rpm-in-case-b-fig-15-thebelt-is-crossed-instead-ofopen-as-in-fig-15a-andthe-pulleys-turn-in-oppositedirections-instead-of-thesame-direction-power-transmission-41-in-the-case-fig-15c-a-common-factory-arrangementis-shown-here-it-is-only-necessary-to-combine-theprocesses-and-to-express-the-formula-as-follows-rpm-of-enginexx2x4-=-irpm-of-mach-xdixdsxdsin-which-d-d2-d-are-driving-pulleys-andd-d3y-d-are-driven-pulleys-coviter-shapt-mh-this-may-be-expressedthe-product-of-the-number-ofrevolutions-of-first-driver-multiplied-2CDJW40.jpg)