Round Stuff

We're celebrating 𝜋 day (3/14) by giving you 31% off these circular-ish items!
SHOW FILTER
Showing 1–48 of 71 results
Helenite Glass Ball
New
Out Stock

Helenite, also known as Mount St. Helens obsidian, emerald obsidianite, and ruby obsidianite, is an artificial glass made from the fused volcanic rock dust from Mount St. Helens and marketed as a gemstone. Helenite was first created accidentally after the eruption of Mount St. Helens in 1980. Workers from the Weyerhaeuser Timber Company were attempting to salvage equipment damaged after the... More info

$4.00
Invisible Blue UV Pen
New
Out Stock

Glows under UV lightMore info

$2.00
Carbon Black
New
Out Stock

This black powder is carbon black, a form of pure carbon (C) and the reason many rubber objects are black. Tires, shoe soles, and practically all rubber products where tensile and abrasion wear properties are important, are reinforced with carbon black. It is also a common pigment for black ink.  Carbon black is one of the oldest pigments and was... More info

$2.50
Sand Shark Tooth Fossil
New
Out Stock

This tooth is a fossil of an extinct shark species, Striatolamia macrota, from the Eocene era approximately 54 million years ago. This shark could grow to a length of about 3.5 meters (11.5 ft) and its teeth were notably big for its size. This species belonged to a family called Sand sharks (Odontaspididae) which still exist today.    -Tooth comes... More info

$2.00
Goniatite Fossil
New
Out Stock

SIZE RANGE: 1" - 2"  Larger specimens will be prioritized first   MORE INFO: Goniatids, informally goniatites, are ammonoid cephalopods that form the order Goniatitida, derived from the more primitive Agoniatitida during the Middle Devonian some 390 million years ago (around Eifelian stage). Goniatites (goniatitids) survived the Late Devonian extinction to flourish during the Carboniferous and Permian only to become extinct... More info

$8.00
Crinoid Fossil
New
Out Stock

One of our oldest fossils, crinoids have lived in oceans since at least the Ordovician Era (485 million years ago). These echinoderms flourished in the Paleozoic Era, covering the ocean floor with their feathery appendages that would open up like a flower to capture food particles like plankton. They survived the Permian Period, which ended with the largest mass extinction... More info

$3.00
Herbivore Triceratops Sticker
New
Out Stock

Species: Ceratops horridus Era: Late Cretaceous (68-66 Million years ago) Locale: North America   More info: Triceratops is a genus of herbivorous ceratopsid dinosaur. Bearing a large bony frill and three horns on its large four-legged body, and possessing similarities with the modern rhinoceros, Triceratops is one of the most recognizable of all dinosaurs and the best known ceratopsid. It shared the... More info

$3.00
Jupiter Sticker
New
Out Stock
Emperor Dragon Sticker
New
Out Stock

Dilong paradoxus 3" sticker. This species was featured in our atomicpost subscription. Be sure to check out our other dilong items here.   More info: Dilong is a genus of extinct, feathered dinosaurs of the tyrannosauroid family. They lived in what is now China during the Early Cretaceous Era around 126 million years ago. Dilong is a relatively recent discovery. It was formally... More info

$3.00
Tungsten Black Hole Model
New
Out Stock

Over 200% funded on Kickstarter! If you compress any amount of mass, it becomes denser. If you compress it enough, it will become so dense that light can no longer escape it—this size is the object’s Schwarzschild radius. An object that is compressed smaller than this radius is a black hole. This tungsten sphere has been engineered to have exactly the... More info

$40.00
Pteranodon Teal Sticker
New
Out Stock

Pteranodon ruled the skies of present-day North America 85 million years ago. Use this sticker to show off your pterosaur pride. Measures about 4.5" tall x 3.5" wide.More info

$3.00
Liquid-Filled Top
New
Out Stock

We don't usually carry religious paraphernalia, but we had to make an exception for these liquid-filled glass dreidels. When spun, the colored water in the internal cavity exhibits interesting physics to keep the top spinning. Includes stand.Dimensions: 3" tall x 1 ½" diameterMore info

$12.00
Uranium Glass Ball
New
Out Stock

In the past, glass manufacturers added uranium to glass for color. Uranium has since become more strictly regulated, but the old uranium glass objects are still floating around. Because of the uranium content, these marbles glow bright green under ultraviolet light.  Size is around ⅞ – 1” diameter. Some dents and manufacturing imperfections can be expected. Slightly radioactive, but they're harmless. Makes... More info

$5.00
Silicon Wafer
New
Out Stock

Wafers are thin sliced semiconductors used to manufacture microelectronics and computer components. This sample is an 8" uncut silicon wafer with integrated circuits. Each wafer contains thousands of duplicate photo-lithographed circuits. Typically this wafer would have been cut up and the individual components would be installed in cell phones, satellite, computers, etc. This item is very fragile, so handle with care. ... More info

$19.95
Supercomputer Memory Chip
New
Out Stock

Supercomputers were introduced in the 1960s, and for several decades the fastest were made by Seymour Cray, the father of supercomputing, at Control Data Corporation (CDC). One such computer was the Cray/CDC Cyber Model 170 supercomputer, designed by Seymour Cray in the 1970s. We were able to acquire a memory bank that belonged to this computer from a collector and painstakingly extract... More info

$16.00
Iron Meteorite (Campo del Cielo)
New
Out Stock

These Campo del Cielo meteorites fell to Earth 4,000–5,000 years ago in Argentina. They are estimate to be about 4.5 billion years old and likely formed during early development of our solar system. A great birthday gift for someone uncomfortable about getting older—a reminder that age is relative! Coordinates of impact: 27°38’S 61°42W Composition: 92.9% Fe, 6.7% Ni, 0.4% Co Naturally magnetic. Add some... More info

$12.00
Magnifying Glass
New
Out Stock

Material: glass  10x magnification 40mm diameterMore info

$2.00
Round Pi Magnet
New
Out Stock

A very circular fridge magnet.More info

$1.00
Radiometer
New
Out Stock

This Radiometer is made from a glass bulb from which much of the air has been removed.  Inside the bulb, on a low-friction spindle, is a rotor with 4 vanes.  Each vane has one blackened side and one silvered side; one black vane features a white dot in order to count rotations easily.  When exposed to sunlight or artificial light,... More info

$16.00
Voyager Golden Record Cover Pin
New
Out Stock

Be a Voyager, exploring of the universe, while wearing this 1.25" version of the plaque on the Voyager spacecrafts.   More Info: The Voyager Golden Records are two phonograph records that were included aboard both Voyager spacecraft launched in 1977. The records contain sounds and images selected to portray the diversity of life and culture on Earth, and are intended for... More info

$8.00
8 Little Planets
New
Out Stock

A delightfully fun, fact-filled planetary tale from the creator of the Baby University series! Travel around the solar system and celebrate what makes each planet unique! From Neptune to Mercury and all the planets in between, each one is different and each one is happy to be what they are. Old slow Neptune looks a bit behind.Orbiting the Sun takes... More info

$9.99
Ant Tower Deluxe Small
New
Out Stock

Perfect for beginner ant keepers, the AntsCanada Ant Tower™ is a fully contained ant environment, complete with a nesting area and a foraging area in a single enclosure. This Deluxe bundle also comes with tools (magnifying glass, pipette, and mini red light for viewing) to enhance the ant keeping experience. It also comes with an easy-to-use hydration system to keep your... More info

$40.00
James Webb Space Telescope Round Sticker
New
Out Stock

The James Webb Space Telescope (JWST) is the next generation of space-based telescope and the successor of the Hubble Space Telescope. Although its launch date has been repeatedly postponed from 2007 to 2021, it has become one of the most highly-anticipated future space missions. With more advanced and sensitive equipment than Hubble, this telescope is expected to answer many questions... More info

$3.00
James Webb Space Telescope Patch
New
Out Stock

Type: Iron on patch The James Webb Space Telescope (JWST) is the next generation of space-based telescope and the successor of the Hubble Space Telescope. Although its launch date has been repeatedly postponed from 2007 to 2021, it has become one of the most highly-anticipated future space missions. With more advanced and sensitive equipment than Hubble, this telescope is expected... More info

$7.50
Starman Tesla Round Sticker
New
Out Stock

Elon Musk's Tesla Roadster is an electric sports car that served as the dummy payload for the February 2018 Falcon Heavy test flight and became an artificial satellite of the Sun. "Starman", a mannequin dressed in a spacesuit, occupies the driver's seat. The car and rocket are products of Tesla and SpaceX, respectively, both companies founded by Elon Musk. The 2008-Model Roadster was previously used by... More info

$3.00
120-Sided Die
New
Out Stock

The d120 is the ultimate fair die allowed by mathematics and this is the world's first injection-molded d120. It is based on a polyhedron known as the disdyakis triacontahedron. Each face is an elongated triangle. These dice are perfectly numerically balanced, with the same sums for numbers around vertices of the same type. It can also be used as a dn, where... More info

$13.95
Golden Constellations Mug
New
Out Stock

The universe is filled with stars, and so is this mug. You can sit with a cool beverage and let your imagination draw figures in the sky… or add hot water and watch 11 lovely hand-rendered illustrations appear: Andromeda, Cassiopeia, Gemini, Hercules, Orion, Perseus, Sagittarius, Scorpius, Taurus, Ursa Major, and Ursa Minor. 12oz ceramic mug. Hand wash only.  Microwave safe. ... More info

$13.00
Climate Change Mug
New
Out Stock

Of course, not everyone wants to be reminded of planet-wide catastrophe during their afternoon coffee break. But if you're the type of person who confronts difficult issues even during your downtime, you should consider getting one. When you pour in hot liquid, the mug shows what will happen when the polar ice caps melt – before your very eyes, coastlines... More info

$13.00
Bioluminescence Mug
New
Out Stock

The mighty sea rolls on, concealing things both mysterious and rare – including animals that produce chemicals to make themselves light up! When enjoying a warm/hot beverage you can discover seven bioluminescent deep-sea creatures. 12oz ceramic mug  Hand wash only  Microwave -safe  More info

$13.00
Geologic Time Mug
New
Out Stock

This mug is a colorful tutorial of fossils and key events from 26 eons, epochs, and eras. 4.56 billion years in the making. INSIDE THE MUG: Elrathia kingii – relief of a trilobite fossil! 14oz ceramic mug.  Dishwasher and microwave safe.  More info

$13.00
Tangent Sticker
New
Out Stock

It’s better to be tangential to everything than a bullseye at one thing. Dimensions: 3” x 3” This item ships free. More info

$3.00
Solar Sticker
New
Out Stock

Advertise something actually important. As solar efficiency increases, declare your allegiance to the smart side of history. Diameter: 3” circle This item ships free. More info

$3.00
Retroreflective Glass Beads
New
Out Stock

These microbeads are retroreflective beads—tiny glass spheres designed to effectively reflect light back to the light source. They are commonly applied to wet paint to create reflective surfaces and markings. They work by allowing light to pass into one side of the sphere, reflect off the opposite side, and return to the source in the color of the paint used. The type of glass... More info

$5.95
Hot Surface Indicator
New
Out Stock

This 1.5" yellow label is a temperature-sensitive indicator that appears blank when cold, but reveals the word “Hot” and a warning graphic when the surface to which the label is adhered exceeds 50 °C (122 °F). The graphic contains a non-toxic mixture of liquid crystal esters that react to the heat and change colors. The chemical reaction is reversible. Once... More info

$2.50
Pteranodon Patch
New
Out Stock

Pteranodon 3" iron-on patch. This species was featured in our atomicpost subscription. Be sure to check out our other pteranodon items here.   More info: Pteranodon is a genus of extinct, large, flying reptiles. They thrived worldwide for about 1.5 million years during the Late Cretaceous Era starting 86 million years ago. Pteranodon is not classified as a dinosaur, but rather with a... More info

$7.50
SpaceX/Telstar 19V Mission Patch
New
Out Stock

When the Telstar V9 communication satellite was sent into orbit by SpaceX on July 22, 2018, it held the record for the heaviest comm. satellite ever launched. It is currently in geo-stationary orbit 22,240 miles over the North Atlantic ocean. Iron-on. 3" diameter. Satellite sticker also available here.More info

$7.50
Plastic Beaker Set of 5
New
Out Stock
Tippe Top (Wood)
New
Out Stock

This spinning top has a surprising behavior. When spun, it will invert itself to spin upside down until it loses momentum. This interesting gyroscopic effect is generally credited to surface friction. This small friction causes a torque which gradually rotates the sphere on a second axis and forces it up onto the stem. Note the direction of rotation before and after... More info

$2.00
Kapton Tape
New
Out Stock

7/16” width. Kapton is a specialty film used in temperatures as low as 4 Kelvin and in an ultra-high vacuum. This makes it ideal for use in space and cryogenics. The iconic images of the Apollo Lunar Module on the surface of the moon highlight its distinct gold Kapton covering. More info

$6.00
Pioneer Patch
New
Out Stock

Official 3" iron-on patch of the Pioneer 10 & Pioneer 11 space probes. These spacecrafts flew by the outer planets before leaving the solar system. They are well-known for the plaques affixed to each space craft depicting a human female and male along with a message for any extraterrestrial beings that may find them. Be a pioneer, exploring the unknown.... More info

$7.50
Jet Engine Axial Compressor Stage
New
-11%
Out Stock

Flown compressor stage from a jet engine. Origin aircraft unknown, likely military. Great piece of aviation wall art. Outer diameter: 29"Inner diameter: 10.5"Blades: 90Total weight: 36 lbsMaterial: Likely titanium, or possibly an alloy of aluminum or nickel.More info

$780.00$695.00
Electric Paint
New
-17%
Out Stock

Paint and print circuits and sensors or use as a conductive adhesive on almost anything including paper, plastic, textiles and conventional electronics. Works with:Touch Board, Pi Cap, electrical components,  prototyping materials, PCBs, microcontrollers, Arduino, Raspberry Pi, MaKey MaKey and e-­textiles. Use with the Touch Board or Pi Cap to make touch sensors. 50mL Made in the UKAges: 14+ MSDS   All... More info

$29.95$24.95
Canadian Space Agency (CSA) Patch
New
Out Stock

Official iron-on patch for the Canadian Space Agency (CSA)—Agence spatiale canadienne (ASC) in French. 4" diameter   More info: The Canadian Space Agency (CSA; French: Agence spatiale canadienne, ASC) was formed in 1989. 14 Space Shuttle missions included Canadian astronauts.More info

$7.50
European Space Agency (ESA) Patch
New
Out Stock

Official iron-on patch for the European Space Agency. Approx. 4" x 4 ¾"   More info: The European Space Agency (ESA) is an intergovernmental organisation of 22 member states dedicated to the exploration of space. It was established in 1975 and headquartered in Paris, France. The agency is working with NASA to manufacture the Orion Spacecraft service module, that will fly on the... More info

$7.50
Chinese Ministry of Aerospace Industry (MOA) Patch
New
Out Stock

Official iron-on emblem of China's former space agency. 3.5" diameter   More info: The Ministry of Aerospace Industry of the People's Republic of China (中华人民共和国航空航天工业部) was a government ministry responsible for its national space program. This ministry was split into the China National Space Administration and China Aerospace Science and Technology Corporation in July 1993 as a part of government... More info

$7.50
National Space Development Agency of Japan (NASDA) Patch
New
Out Stock

Former Japanese space agency logo iron-on patch. 3" diameter. Modern agency, JAXA, insignia can be found here.   More info: The National Space Development Agency (宇宙開発事業団) of Japan, or NASDA, was a Japanese national space agency established in 1969. In 2003, NASDA merged with the Institute of Space and Astronautical Science (ISAS) and the National Aerospace Laboratory of Japan (NAL) to form the Japan Aerospace Exploration... More info

$7.00
NASA Vector Logo Enamel Pin
New
Out Stock

Official NASA Vector emblem pin. 1" diameter Also available as a patch.   More info: NASA's second official insignia, meant to be used for less formal purposes than the official seal. Unofficially called the "meatball", it replaced the"worm" logo.More info

$8.00
Pre-loader