Mark Smith

Your phone's GPS relies on Einstein's theory of relativity. Without the correction, it would drift by 10 kilometers every day. Here's why: GPS satellites orbit at 20,200 km altitude. At that height, time runs slightly faster due to weaker gravity (general relativity). They also move at ~14,000 km/h, which slows time (special relativity). Net effect: satellite clocks gain 38 microseconds per day relative to Earth. 38 microseconds = 10 km of positional error per day. So every GPS device on Earth runs a real-time relativistic correction. Einstein published this in 1905.

🚗⚡ One in four new cars sold globally in 2025 was electric! The EV transition is picking up speed: 🇳🇴 Norway: 97% 🇩🇰 Denmark: 71% 🇸🇪 Sweden: 61% 🇨🇳 China: 53% (more than half!) 🇬🇧 United Kingdom: 35% 🇩🇪 Germany: 30% 🇪🇺 European Union: 27% 🌍 Global average: 25% 🇦🇺 Australia: 15% 🇺🇸 United States: 10% 🇯🇵 Japan: 3% Huge gap between the leaders and the rest of the pack. Data: IEA Global EV Outlook 2026

☀️ Installed solar power by country from 2012 to 2025

🇪🇸 Spain just became one of Europe’s cheapest power markets. In early 2026, Spain’s average wholesale electricity price was €44/MWh, compared to: • Italy: €127 • Germany: €96 • UK: €103 How? Wind + solar now make up 44% of generation (vs. fossils at just 17%). Gas is rarely setting the price anymore (down to ~9% of hours).

🧾 The U.S. now spends more on Interest than Defense (first time since the late 1920s). Data Sources: White House Historical Tables + CBO February 2026 projection

Here’s the new Freelander 8. Designed by JLR, engineered and built by Chery in China. Six models coming in five years. Left- and right-hand drive. First market - Middle East. It’s a 5.1m long plug-in hybrid.

To be honest, I thought these would sell quicker…

Electric car sales soar 51% in mainland Europe as Iran war drives up fuel prices. 224,000 new electric vehicles (EVs) were registered in March, and 500,000 across the first three months of the year – a 33.5% increase on a year earlier.

The best crisps of all-time?

How me and AI collaborate at work

Costco has a company policy that no regular item will be marked up more than 14% over cost & no Kirkland Signature item will be marked up more than 15% over cost. Costco runs "very lean", with overhead costs at 10% of revenue & profit margins at 2% (e.g. it has no PR dept. & buys no outside ads).

One shipload of solar panels can generate as much electricity as 100 shiploads of coal. 🟡 Solar PV 🚢 🔵 LNG 🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢 ⚫️ Coal 🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢 🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢🚢

And this is why women live longer than men.

Global Debt Burden by Country 🌍
 Total debt as % of GDP - household + corporate + government 🇭🇰 Hong Kong - 380%
🇯🇵 Japan - 372%
🇸🇬 Singapore - 347%
🇫🇷 France - 326%
🇨🇦 Canada - 315%
🇨🇳 China - 298%
🇺🇸 United States - 264%
🇰🇷 South Korea - 249%
🇮🇹 Italy - 236%
🇲🇾 Malaysia - 224%
🇹🇭 Thailand - 223%
🇧🇭 Bahrain - 223%
🇬🇧 United Kingdom - 214%
🇩🇪 Germany - 200%
🇮🇱 Israel - 184%
🇧🇷 Brazil - 178%
🇯🇴 Jordan - 172%
🇬🇩 Grenada - 168%
🇲🇻 Maldives - 167%
🇮🇳 India - 163%
🇻🇳 Vietnam - 161%
🇭🇺 Hungary - 161%
🇨🇱 Chile - 158%
🇸🇳 Senegal - 156%
🇿🇦 South Africa - 149%
🇹🇳 Tunisia - 143%
🇸🇻 El Salvador - 134%
🇹🇹 Trinidad & Tobago - 134%
🇰🇼 Kuwait - 131%
🇨🇬 Congo - 131%
🇨🇿 Czechia - 129%
🇷🇺 Russia - 127%
🇪🇨 Ecuador - 125%
🇲🇦 Morocco - 124%
🇨🇴 Colombia - 121% Source - IMF Global Debt Monitor, 2025 Q4 data 📊

I didn’t realize there were so many people getting destroyed by mattresses 😂

The "LED TV" was only made possible by the invention of the Blue LED. While Red and Green LEDs existed since the 60s, the Blue LED was so difficult to create that its inventors won the Nobel Prize in Physics in 2014 for finally enabling energy-efficient white light sources.