26-10-21
Mystery of the wheelie suitcase: how gender stereotypes held back the history of invention Mystery of the wheelie…

In 1970 an American ABS luggage executive unscrewed four castors from a wardrobe and fixed them to a suitcase. Then he put a strap on his contraption and trotted it gleefully around his house.     This was how Bernard Sadow invented the world’s first…

In 1970 an American ABS luggage executive unscrewed four castors…


Gratis
26-10-21
CNC Milling vs. CNC Turning: All You Need to Know CNC Milling vs. CNC Turning:…

  CNC machining is a rapid manufacturing process that turns digital 3D designs into plastic or metal parts by selectively cutting away material. Many companies require CNC machining service to make parts and prototypes, and many industries use the…

  CNC machining is a rapid manufacturing process that turns digital 3D…


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26-10-21
What are lenticular images, and why do they look so awesome? What are lenticular images,…

    Every day, there are hundreds—perhaps even thousands—of advertising messages knocking on your head trying to gain access to the part of your brain that decides to buy things. With so much money at stake, it's hardly surprising that advertisers…

    Every day, there are hundreds—perhaps even thousands—of…


Gratis
25-10-21
Starter Motor Starter Motor

Starter Motor     Motor starters are usually fitted with a trip device which deals with overcurrents from just above normal running current of the motor to the stall current. The aim should be for the device to match the characteristics of the motor so…

Starter Motor     Motor starters are usually fitted with a trip…


Gratis
25-10-21
5 of the best yoga pants: Health benefits and risks 5 of the best yoga pants:…

5 of the best yoga pants: Health benefits and risks     Wearing yoga suit while exercising may make a workout more comfortable and therefore more enjoyable. It may also prevent overheating. That said, it also carries some health risks.     This article…

5 of the best yoga pants: Health benefits and risks     Wearing yoga…


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