A giraffe's heart, which can weigh up to 10 kg (24 lb), has to generate around double the normal blood pressure for a large mammal in order to maintain blood flow to the brain against gravity.
What does Forged mean in Urban Dictionary?: From great adversity comes great energy. As the toughest metallic is forged into the hottest fires, so too, we people are forged and enhanced through our veryâ¦
A forged piston is strong because of the material it is made from. It is forged because the material is not very castable. The forging process DOES add grain flow and add strength to the part as above, but it is primarily the higher material Ultimate Tensile Strength (UTS) and Yield Strength (YS) that make it strong.