Predict the weather using the same instrument utilized by Charles Darwin during his voyage on the HMS Beagle! The storm glass was invented by Admiral Robert FitzRoy in the 19th century. Ostensibly, the mixture of distilled water, ethanol, potassium nitrate, ammonium chloride, and camphor will form a crystalline substance that reacts to temperature changes in order to predict whether the weather will be fair, rainy, stormy, cloudy, or windy. While the efficacy of the device is dubious at best, the Storm Glass is an excellent conversation piece for your desk, and represents an important step in the history of meteorology. Whether the glass proves accurate or not, noting how it changes and when can be a fun experiment and the device, which features a beechwood base, is an aesthetically pleasing addition to offices, studies, or bedrooms. Makes for a fun gift for anyone fascinated by the chaotic mysteries of the weather.
Create currents and discover gravity while exploring the theory of Lenz's Law with this kit!
This high precision gyroscope will amaze you with rotational speed and ease of precision.
This kit focuses on teaching children about electricity and how electronic devices work!
This great rock tumbling kit comes with everything you need to polish stones and gems!
Build a hand that realistically moves its fingers using shape memory allow technology!
Perform awesome experiments using everyday materials found in any kitchen!