Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 13 - Jul 18
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Hugo Michnik's Contributions To The Theory Of SundialsThis is the 8th book in Fred Sawyers Sciatherics series. It includes translations of Hugo Michnik's early 20th century contributions to the theory of sundials. These include the first full development of the equations for seasonal hour lines on ancient sundials, the introduction of sidereal hour lines for dials, and the invention of the bifilar sundial that indicates time from the intersection of the shadows of two perpendicular wires raised to
This is the 8th book in Fred SawyerÕs Sciatherics series.
It includes translations of Hugo Michnik's early 20th century contributions to
the theory of sundials. These include the first full development of the equations
for seasonal hour lines on ancient sundials, the introduction of sidereal hour
lines for dials, and the invention of the bifilar sundial that indicates time
from the intersection of the shadows of two perpendicular wires raised to
different heights above the dial face. The book also includes 6 explanatory
articles on Michnik and his work, including the first biographical essay to
identify who Hugo Michnik was and to give details of his life.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy