Useful inventions & DIY #amazingideas #diy #craftideas ...

The great invention of the welder from pipe and armature ...

"We have a new phrase called the 'new four great inventions' in China, including high-speed railway, online shopping, mobile payment and sharing bikes," he told journalists at the NPC. But these ...

We are conservatives in • respect to inventions which are old ... is twenty times less, betrays a great want of judgment. With respect to new and superior modes of travelling; too much attention ...