Home · #17 of 26 · Since 1940–1950
Electric shower
Heats the water in the shower head itself, a few centimeters from the user's head. Considered perfectly normal by almost everyone who has ever showered in Brazil.
Jabuticaba Index®
71%
Plausibility range: 71%
Evidence grade. Computed from source types: from A (official and academic data) to D (editorial judgment). It does not change the index.
01What exactly is being measured
A shower head with an electric heating element that heats water at the point of use, installed as the home's main water heating.
02Context
03Where else it exists
- Local presence(Marginal → Widespread)
- Exported from Brazil(Marginal → Widespread)
- Brazil
- Absent (checked)
- No data
Equal Earth projection. Places with uncertain presence take the color of the highest possible level; the table shows the full range.
04How we got this number
- Presence abroad
Sum of each place's weight: widespread = 1, regional = 0.5, marginal = 0.1. Where it only exists as a Brazilian export, the weight is multiplied by 0.5.
- 7.5
- Exclusivity E
From 0 (exists everywhere) to 1 (only in Brazil), on a log scale.
- 0.54
- Intensity I
How much more common it is in Brazil than in the other places where it exists.
Fictional prevalence ratio of 8 times the runner-up. [2]
Prevalence ratio: 8×
- 3 of 4
- Rarity coefficient R
R = E + 0.5 × (I ÷ 4) × (1 − E)
R = 0.54 + 0.5 × (3 ÷ 4) × (1 − 0.54) = 0.71
- 0.71
- Jabuticaba Index®
- 71%
Not part of the score
How aware Brazilians are that this is rare abroad.
Rarely recognized as a national peculiarity. editorial judgment
0–1 of 4
05Sources
- [1]
Relatório Anual da Associação Hipotética
Associação Brasileira de Coisas Hipotéticas · Nov 2025 · Organization · in Portuguese
example.org/fictional-association · accessed Sep 25, 2026
- [2]
Censo Imaginário de Coisas Brasileiras 2025
Instituto Brasileiro de Geografia Imaginária · 2025 · Statistical data · in Portuguese
example.org/fictional-census · accessed Sep 25, 2026
Last reviewed Sep 25, 2026 · Methodology v0.2