Pay in installments of $2.75 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 16 - Jul 21
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Practical Conic Sections: The Geometric Properties of Ellipses, Parabolas and HyperbolasIllustrated with interesting examples from everyday life, this text shows how to create ellipses, parabolas, and hyperbolas and presents fascinating historical background on their ancient origins. The text starts with a discussion of techniques for generating the conic curves, showing how to create accurate depictions of large or small conic curves and describing their reflective properties, from light in telescopes to sound in microphones and
Illustrated with interesting examples from everyday life, this text shows how to create ellipses, parabolas, and hyperbolas and presents fascinating historical background on their ancient origins. The text starts with a discussion of techniques for generating the conic curves, showing how to create accurate depictions of large or small conic curves and describing their reflective properties, from light in telescopes to sound in microphones and amplifiers. It further defines the role of curves in the construction of auditoriums, antennas, lamps, and numerous other design applications. Only a basic knowledge of plane geometry needed; suitable for undergraduate courses. 1993 edition. 98 figures.Binding Type: Paperback
Publisher: Dover Publications
Published: 10/18/2010
ISBN: 9780486428765
Pages: 112
Weight: 0.47lbs
Size: 9.02h x 6.56w x 0.32d
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
4.3 ★★★★★
Based on 22 reviews
Sort
Product Reviews
★★★★★ 5
Sink utensils container
Works great, only thing is, we have a scrub sponge with the dish soap handle. It has to be placed in the front corner or it drips into the container.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 24, 2026
★★★★★ 5
Storys many dishwashing tools
Not as easy to dispense soap than a spout but appears more durable
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 19, 2025
★★★★★ 5
Strong Suction Cups
Color: Silver
I didn't realize that this caddy came with the option to use suction cups or adhesive hooks. I opted for the suction cups and was pleasantly surprised at their strength. I loaded the caddy up with a couple of sponges, fingernail brush, and a dishwashing brush (filled with liquid soap) and have had no problems with the caddy remaining strongly secured. It's a great little organizer and looks really nice.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 10, 2025
★★★★★ 5
GREAT Suction!! Looks fantastic!
Color: Silver, Color: Silver
I wanted to find a sponge holder with great suction for our ceramic sink. This is the REAL DEAL! I saw one or two complaints on the reviews below but obviously they are doing something wrong, because if you just follow the instructions (make sure the sink is clean and dry where you stick it), it works perfectly. I've had it for about 3 weeks now and we use it every single day and it has never slipped even once. The suction cups are big and made of good plastic so they really do the job. It hasn't budged from the spot where I placed it. It's also easy to take the caddy off of the suction cups when you want to clean the sink without moving the suction cups. You can peel them off easily and reposition them but they will not move unless you want them too. It's also the perfect size and looks great. Perfect for holding a stick sponge upright so that the soap doesn't leak out of it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 14, 2020
★★★★★ 4
Great product. Suction can be improved though.
Color: Silver
I'm satisfied with my purchase. It gets the job done. The suction pads can definitely be improved though, I found that pads couldn't keep the holder in place for more than an hour so I just removed the suction pads and kept it beside my sink. Overall, great product. Would definitely recommend.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 13, 2020