Sper Scientific 739750 Barometer Weather Ball - Excellent for Educational App...

Description: Sper Scientific 739750 Barometer Weather Ball - Excellent for Educational App... Description Description Features. Torricelli proved that air pressure was subject to variations and in he devised the first barometer. Goethe the famous German playwright who enjoyed scientific experiments later developed his own simple but effective barometer using the principles established by Torricelli. This barometer is based on Goethes design. The Weather Ball Barometer will indicate changes in air pressure quickly and accurately. The ball is filled with colored distilled water. Once filled the air trapped inside the ball is no longer subject to variations in atmospheric pressure. The liquid in the indicator tube however remains open to the atmosphere and is directly affected by atmospheric pressure. When atmospheric pressure rises the liquid in the indicator tube is pushed down and an improvement in the weather can be anticipated. When air pressure falls the greater pressure inside the weather ball causes the liquid in the indicator tube to rise indicating that a deterioration in weather can be expected. Comes with full instructions. SKU: SPRCT056 Payment We accept payment via PayPal, Mastercard, Visa, American Express, Discover and PayPal's 'Bill Me Later'. Note: All purchases are processed via PayPal. If you have any questions or issues with your order, please contact us--we'll resolve them for you. We aim for five star service and want you to be happy - period. About Us Unbeatable Sale is a privately held direct marketing retailer. Our management shares more than 30 years of experience in direct marketing and consumer goods industries. Our mission is "to meet consumer demand in a demanding world". Our goal is to give our customers exactly what they want, when they want it, and how they like it. We provide hands-on customer service--making sure each and every customer is treated royally, taken care of, and completely satisfied. Unbeatable Sale has developed a unique marketplace for the discriminating shopper. We offer our customers special merchandise at the exact moment that they are most prepared to buy. Our all-encompassing marketplace is an incredible vehicle for satisfying consumers who are looking for quality and value--keeping them loyal to our brand. Returns If you have any questions or issues with your order, please contact us--we'll resolve them for you. We aim for five star service and want you to be happy - period. If the item(s) is damaged in transit or DOA, an exchange will be made or a refund issued. We offer a money-back guarantee on products returned within 30 days. In order to receive proper credit on your return, please contact us to request a Return Authorization Number (RA) - This will allow us to process your return when it comes back to our warehouse. If the package is refused or returned without our issuing of an RA or without the RA # on it, a restocking fee will be applied. We will be unable to refund your cost of the original shipping if you decide that you do not want the order after it has already been submitted. Please note: We do not issue prepaid return labels. All returns must be in their original carton with all packing material intact. All returns must be sent freight prepaid by the customer and insured. Orders refused at delivery will be assessed all of the applicable fees listed above including the return fee, our shipping costs and a 25% restocking fee. Exceptions For all furniture items we will replace any parts that are damaged but the item may not be returned if you changed your mind. We will not accept returns on sports- related autographed Memorabilia and Collectables or on any custom made items such as any customized car mats or children's furniture or other items that are custom made. We will not accept returns on any shavers, personal care items, cosmetics or intimate products that have been opened. We will not accept returns on any software, video games, computer parts, electronics, or laptops/PC's if the packaging is opened. We will not accept returns on any costumes purchased from Aug. 1 - Oct 30 - After Halloween (Oct. 30). We will not accept any returns for Wigs, Makeup, Tights or Shoes that have been worn. For customer service: Send via eBay Messaging 30 Day Satisfaction Guaranteed

Price: 38.81 USD

Location: Lakewood, New Jersey

End Time: 2025-01-05T03:02:19.000Z

Shipping Cost: 0 USD