कोशिश गोल्ड - मुक्त
HOW TRAIN TRACKS ARE LAID
How It Works UK
|Issue 200
This feat of engineering keeps long carriages in-line and fixed to the ground

The world's railway networks are over 800,000 miles long, hauling conventional trains at speeds over 100 miles per hour across the countryside and through towns and cities.
High-quality tracks are vital for fast commutes across obstacle-free terrain. A train's wheels securely fix to these tracks as their conicalshaped wheels have a wider circumference on the outer edge, while the inner edge of the wheel has a lip that connects to the inside of the rail as a guide.

यह कहानी How It Works UK के Issue 200 संस्करण से ली गई है।
हजारों चुनिंदा प्रीमियम कहानियों और 10,000 से अधिक पत्रिकाओं और समाचार पत्रों तक पहुंचने के लिए मैगज़्टर गोल्ड की सदस्यता लें।
क्या आप पहले से ही ग्राहक हैं? साइन इन करें
How It Works UK से और कहानियाँ

How It Works UK
UNCANNY'S DANNY ROBINS
The creator and host of the BBC's Uncanny series tells us about his most chilling experiences while researching the show, and writing a ghost book for children
4 mins
Issue 208

How It Works UK
HOW FEATHERS GROW
A bird's proteinaceous plumage comes from the same source as our hair
1 mins
Issue 208

How It Works UK
New EV battery technology could power 500-mile road trips on a 12-minute charge
Scientists have used a neat chemistry trick to tackle a major challenge facing future batteries.
2 mins
Issue 208

How It Works UK
HOW AIR PURIFIERS WORK
These filtration devices clean a room's air of particles that can make a person sick
1 min
Issue 208

How It Works UK
Chinese scientists hunt for alien radio signals in a 'potentially habitable' star system
TRAPPIST-1 is a red dwarf star located about 40 light years away that hosts seven Earth-sized rocky planets, with at least three orbiting in the habitable zone where liquid water could exist.
2 mins
Issue 208

How It Works UK
WHAT HAPPENS WHEN WE DIE?
Our bodies are vessels for life, but in death they undergo a cascade of chemical and biological changes
3 mins
Issue 208

How It Works UK
WHY ARE KEYBOARDS QWERTY?
There's a reason why this seemingly random arrangement of letters is widely used on keyboard layouts
1 min
Issue 208

How It Works UK
A 'quasi-moon' discovered in Earth orbit may have been hiding for decades
A new paper describes a possible 'quasi-moon' of Earth, an interloping asteroid that may have been following our planet around for decades, undetected.
1 mins
Issue 208

How It Works UK
WHAT'S AN ANTI-DRONE GUN?
How these devices intercept and disable unmanned aerial vehicles
1 mins
Issue 208

How It Works UK
Dozens of mysterious blobs discovered inside Mars may be 'failed planets'
Giant impact structures, including the potential remains of ancient ‘protoplanets’, may be lurking deep beneath the surface of Mars.
2 mins
Issue 208
Listen
Translate
Change font size