Parent company · est. 2026 · Tashkent
PT Technologies makes systems for businesses, apps for people, and free tools for anyone who writes - shift management for any business that runs on shifts, English for children, and a writing toolkit used at universities worldwide.
- Entity
- PT TECHNOLOGIES LLC
- Since
- 2026-09-05
- TIN
- 313308723
- Nodes
- 03 online
- Where
- Tashkent, Uzbekistan
Three kinds of thing
Systems for businesses
Software a business runs its day on - built for one industry at a time, from the floor up, with its own deployment, its own customers and its own site. For any business that runs on shifts, to begin with.
Apps for people
On a phone, or inside Telegram with nothing to install. Written in the language of the person holding the device, not translated afterwards. Learning apps for children, and apps for reading closely.
Tools for anyone who writes
A free writing toolkit for work that has to be handed in, used by students and researchers at universities worldwide. In the browser, without an account, and honest about what it can and cannot do.
One company, several doors
Each division has a site of its own, and everything it makes lives there. This page only says which door is which.
- P waves are compressional and the fastest: about 6 km/s through continental crust, so they reach a seismometer first. S waves shear the rock sideways and travel at roughly 3.5 km/s.
- The gap between the P and S arrivals gives the distance to the source: close to 8 km for every second between them.
- A tokamak holds its plasma off the walls with a ring of coils. ITER's has eighteen, and its plasma is meant to run near 150 million °C - ten times the temperature at the centre of the Sun.
- Every mass has a Schwarzschild radius, 2GM/c²: about 3 km for the Sun, about 9 mm for the Earth. Squeezed inside it, the mass becomes a black hole.
- Nothing orbits a non-spinning black hole closer than three Schwarzschild radii without falling in, so its disk has an inner edge there. At one and a half, light itself can circle the hole.
- The dark shadow looks about 2.6 times wider than the horizon, because passing light is bent inward. The Event Horizon Telescope imaged the one around M87* in 2019, 55 million light-years away.