--- title: "Education, explained | Nexus Observatory" description: "Interactive explainer: education and skills in 3D, chapter by chapter: how far is the nearest station?, is it safe to run outside?…" url: https://observatory.global/industries/education/explainer/ publisher: Nexus Observatory Inc. updated: 2026-11-02 --- Overview Drag or use the arrow keys to turn Education. Roof weather station; Seismograph; Campus 5G; Classroom air Education · Sector explainer Explainer # Instruments that teach. A weather station on the gym roof, a seismograph in the basement, a CO₂ sensor on the classroom wall, a statewide network run by the university down the road. Each chapter puts one education deployment on the stage, lets you change the input that matters and computes what a student would. **Chapters**: 6 **Deployments**: 5 **Readouts**: 19 **Scale**: 1:1 metres **01** University mesonet **02** School weather station **03** School seismograph **04** Classroom air **05** Campus private 5G **06** Proof **01** · University mesonet Spatial density ## How far is the nearest station? A state or provincial mesonet run by a university puts identical towers across the territory so that every town is close to a reading. On a square layout the spacing is √(A/n), and the average distance from any point to its nearest station is about 0.383 times the spacing, the mean distance from a random point in a square to its centre. Set the area and the number of towers. **Spacing**: 38.7 km **Average distance to the nearest tower**: 14.8 km **Farthest any point can be**: 27.4 km **Area per tower**: 1,500 km² **02** · School weather station Psychrometry ## Is it safe to run outside? A weather station on the school roof gives the class real numbers and gives the coach a call. The heat index combines temperature and humidity into how hot it feels in shade; this is the US National Weather Service algorithm, the Rothfusz regression with its low- and high-humidity adjustments, and its caution bands. Dew point from the Magnus formula. **Heat index**: 37.1 °C **Band**: Extreme caution **Dew point**: 23.3 °C **03** · School seismograph Seismology ## S minus P gives the distance. A seismograph in the school basement records the P wave first and the slower S wave after it. The gap between them grows with distance: d = Δt · Vp·Vs/(Vp − Vs). With typical crustal speeds of about 6 km/s for P and 3.5 km/s for S, that is roughly 8 km for every second of S − P, the rule students use on their own records. Three schools with three distances locate the quake. Set the S − P time read off the trace. **Distance to the quake**: 101 km **P travel time**: 16.8 s **S travel time**: 28.8 s **04** · Classroom air Mass balance ## Thirty students, one window. A CO₂ sensor on the classroom wall turns ventilation into a number the class can see. At steady state the room sits above outdoor air by the generation rate over the airflow: ΔC = G/Q, with G = 0.0052 L/s per seated adult (children breathe out less, so this errs high) and outdoor air at 420 ppm. The room approaches that level with time constant V/Q. Health Canada's long-term exposure limit for indoor CO₂ is 1,000 ppm. **Steady-state CO₂**: 1,720 ppm **Against 1,000 ppm**: 720 ppm over **Time to 95 % of that**: 83 min **Air for 1,000 ppm**: 9.0 L/s per person **05** · Campus private 5G Link budget ## Shared spectrum, counted in cells. A campus network on shared mid-band spectrum, used for teaching and for research on the network itself. Free-space loss is 20 log d + 20 log f + 32.44 (d in km, f in MHz); buildings, trees and bodies add clutter loss on top. What the link budget leaves sets the cell radius, and hexagonal cells of radius r each cover 2.6 r². Set the band, the budget and the clutter. Band **Cell radius**: 332 m **Loss at 100 m in free space**: 83.6 dB **Cells for the campus**: 6 **06** · Proof Data literacy ## A year of readings per classroom. What a school board asks to see, from the sector research. The data-literacy case is arithmetic: a station that reports every few minutes gives each class a full year of real, local records to plot, average and question. Reporting interval - Curriculum alignment - Safe installation on school property - Data-literacy outcomes - Low cost per school **Records per variable per year**: 105,120 **Values per station per year**: 630,720 ## Instruments that teach. School stations, university networks and campus testbeds, installed safely, kept running and wired to the classroom. [Talk to us](https://observatory.global/contact/) [Sector overview](https://observatory.global/sectors/education/) [Plan a deployment](https://observatory.global/contact/deployment/) [Nexus Observatory](https://observatory.global/)**Education and skills** . 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