-
9 votes
-
‘Dolphin skin’ propeller boosts fuel efficiency of cargo ships
12 votes -
Mexico City’s metro system is sinking fast
12 votes -
What Boeing did to all the guys who remember how to build a plane
54 votes -
Trains on the Moon
8 votes -
Tesla's gear-shifting problems known long before Angela Chao's death
36 votes -
Boeing is withholding key details about door plug on Alaska 737 Max 9 jet, NTSB says
29 votes -
What Boeing’s door-plug debacle says about the future of aviation safety
13 votes -
Liberal visions and boring machines – The early history of the Channel Tunnel [the railway tunnel connecting the UK to France]
4 votes -
A cycle of misery: The business of building commercial aircraft
6 votes -
Electric vehicles: can 'lightweighting' combat range anxiety?
24 votes -
Oblique wing aircraft - Could this change air travel forever?
12 votes -
The fascinating engineering behind electric trains
17 votes -
The West vs Asia: what drivers are taught about motorcycle brakes
I've studied for motorcycle driving licenses in both my home country in Europe, and my work country in Asia. Something that really stood out to me was what each country said about braking. This...
I've studied for motorcycle driving licenses in both my home country in Europe, and my work country in Asia. Something that really stood out to me was what each country said about braking. This wasn't just advice or anecdotes, it appeared on each formal theory test.
Europe: Front brakes are the strongest, they are your go-to in an emergency. Use front brakes to stop, and rear brakes to slow gently.
- https://bikesaint.com/blogs/motorcycle-safety/braking-on-a-motorcycle
- https://www.cycletrader.com/blog/2023/05/15/when-should-i-use-the-front-rear-brakes-on-a-motorcycle/
Asia: Rear brakes are the strongest, front brakes are deliberately weaker. This is because braking too hard on the front is very dangerous, you'll catapult yourself over the handlebars as the rear half of the bike still has momentum.
Direct translation of exam question:
Which of the following is wrong about using a motorcycle brake?
A use both front And rear brakes
B Front wheel brake first
C rear wheel brake first
D Do not use the front brake too early
Answer B
Look at the problem, to choose " wrong approach ", of course, is to choose " first use the front wheel brake ". The car is moving forward, then the use of front wheel brake, in the role of inertia, easy to cause rollover, we should pay attention to safety!
I guess my overall question is, what are the underlying approaches to brake engineering here? Are either of them 'more correct' or is it a case of different priorities at play?
26 votes -
REVR plans to turn your ICE car into a plug-in hybrid for US$3,200
20 votes -
Which is easier to pull? (railcars vs. road cars)
5 votes -
Modernizing New York commuter rail: through-running service between New York City, New Jersey, Long Island, Westchester, and Connecticut
14 votes -
Modernizing railways for high speeds: the engineering challenges in setting speed zones
10 votes -
Sergey Brin's airship gets US FAA clearance
27 votes -
Building the world's largest cruise ship 'Icon of the Seas' in Turku, Finland
6 votes -
Tesla reinvents carmaking with quiet breakthrough
25 votes -
Should airships make a comeback?
25 votes -
How this train beat the plane: The TGV story
8 votes -
I had to throw out my script about this submarine simulator
11 votes -
America needs the Alpine A110 R - lightweight driving bliss
6 votes -
Bergen is gearing up to open the world's longest purpose-built pedestrian and bicycle tunnel – 2.9km tunnel takes 30-45 minutes to walk through
8 votes -
The most complex system in modern cars
3 votes -
The factory that only builds white Toyota Land Cruisers
8 votes -
What happened to giant hovercraft?
5 votes -
What actually happened to the Concorde
5 votes -
Just another pedestrian killed
10 votes -
Metallurgist admits faking steel-test results for Navy subs
10 votes -
How one little boat (and me) held up miles of London traffic at Tower Bridge
7 votes -
The future of airliners? The plane that may change air travel forever (Boeing X-48)
8 votes -
The fastest train ever built: The SCMaglev
9 votes -
How to design a sailing ship for the 21st century?
15 votes -
Tokyo's subway system
8 votes -
The new $45 billion metro system under construction beneath Paris
12 votes -
Porsche found a way to 3D-print lightweight pistons that add even more horsepower
6 votes -
US FAA engineers objected to Boeing’s removal of some 787 lightning protection measures
5 votes -
Crash course: How Boeing's managerial revolution created the 737 Max disaster
12 votes -
Ode to the 767
10 votes