共感で繋がるSNS
人気
イミュ
computerなんだからcalculationするのあたりまえじゃんって
5
ナナシ
回答数 72>>
late 15c., "with subtraction of," from Latin minus "less," neuter of minor "smaller" (from PIE *mi-nu-, suffixed form of root *mei- (2) "small").
According to OED, this mathematical prepositional use in expressions of calculation was not in the classical Latin word and probably is from North Sea medieval commercial usage of Latin plus and minus to indicate surplus or deficiency of weight or measure.
(´ω`)
ぼけちゃんだるー
It's better to compare CO2 to a 4-ton truck than to a bar of chocolate...
That's an interesting perspective! If we convert CO2 emissions into "the distance traveled by a 4-ton truck" or "the number of bars of chocolate," we can get a more realistic sense of how much of an environmental burden our lives are causing.
---
🚚 How much CO2 is emitted by one Japanese person?
Prerequisites
• Annual CO₂ emissions per Japanese person: Approximately 8.5 tons (8,500 kg)
• Fuel efficiency of a 4-ton truck: Average approximately 4 km/L (diesel)
• CO₂ emitted by burning 1 L of diesel fuel: Approximately 2.6 kg
Calculation
8,500 kg ÷ 2.6 kg/L ≒ 3,270 L (equivalent annual fuel consumption)
3,270 L × 4 km/L ≒ 13,080 km
✅ In other words, the CO₂ emitted by one Japanese person in a year is equivalent to driving a 4-ton truck for approximately 13,000 km! (Approximately 17 round trips between Tokyo and Osaka)
---
🍫 How many chocolate bars is that?
2