The building was originally part of the Astra AB pharmaceutical complex before being repurposed into a science center.
The name 'Tom Tits' is derived from a 19th-century French popular science book series titled 'La Science amusante' by Tom Tit.
The center includes an indoor 'drop tower' that allows visitors to experience free-fall sensations safely.
Many exhibits are designed to be disassembled or manipulated, encouraging reverse engineering and mechanical curiosity.
The site features a significant collection of optical illusions, including rooms specifically designed to warp the viewer's sense of spatial orientation.
Tom Tits Experiment is a four-story science center in Södertälje designed for interactive exploration of physics, biology, and chemistry. The facility is housed in a former industrial building that once served as a yeast factory for the local company Astra. It features approximately 500 experiments that visitors can manipulate physically to understand scientific phenomena. The outdoor park section operates seasonally and includes large-scale mechanical exhibits and water-based experiments. The center emphasizes sensory experiences, including light, sound, and balance challenges. It caters primarily to families and school groups by focusing on tactile learning rather than traditional static displays.
The large, colorful, and geometrically complex outdoor kinetic structures near the entrance provide the most distinct visual backdrop.
Wear comfortable, flexible clothing as many exhibits require crawling, climbing, or physical movement.
Bring a change of clothes if visiting during warm months, as many outdoor water-based experiments involve a high risk of getting wet.
Focus on one or two floors per visit to avoid sensory overload, as there is enough content to sustain multiple return trips.
Attempting to complete every single experiment in one visit, which usually leads to fatigue, and skipping the outdoor park if the weather allows.
The outdoor park is strictly seasonal and closed during the winter months.
Active participation is encouraged, but visitors must follow safety instructions near mechanical exhibits; running is generally discouraged for safety reasons.
