BlogHide Resteemsmoradad (25)in morocco • 7 years agoWhy avoid engineers use the PENCIL for marking Metals? ***لماذا يتجنب المهندسون استخدام قلم الرصاص لوضع علامات على المعادن؟Vr english The Minerals interact electrically with each other, so that they begin a series of interactions. As happens in metals, some non-metallic materials with electrical characteristics and are…moradad (25)in morocco • 7 years agoWhy do the better vehicle on a cold day?!***لماذا تعمل السيارة بشكل أفضل في يوم بارد؟!Vr : English Note that the vehicle is in the warm day, accelerated suddenly if moved to a cool area. What is the reason? The fact that the vehicle tool really improved. There is an error is…moradad (25)in morocco • 7 years agohyHello friends steemit i am new here welcome