Amir Ziv-av, an inventor with Ziv-Av Engineering Ltd., Or-Yehuda, Israel, had developed a bidirectional (right or left-handed threads), variable-pitch screw with applications in mechanical and ...
Infiniti's new Variable Compression Turbo is the centerpiece of this crossover. Variable compression engine sounds like something you’d hear from a super villain describing his latest contraption. At ...
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