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  2. Irresistible force paradox - Wikipedia

    en.wikipedia.org/wiki/Irresistible_force_paradox

    An example of this paradox in eastern thought can be found in the origin of the Chinese word for contradiction (Chinese: 矛盾; pinyin: máodùn; lit. 'spear-shield'). This term originates from a story (see Kanbun § Example) in the 3rd century BC philosophical book Han Feizi. [2]

  3. Stress (mechanics) - Wikipedia

    en.wikipedia.org/wiki/Stress_(mechanics)

    This type of stress may be called (simple) normal stress or uniaxial stress; specifically, (uniaxial, simple, etc.) tensile stress. [13] If the load is compression on the bar, rather than stretching it, the analysis is the same except that the force F and the stress σ {\displaystyle \sigma } change sign, and the stress is called compressive ...

  4. Hydrogen embrittlement - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_embrittlement

    This pressure can increase to levels where cracks form, commonly designated hydrogen-induced cracking (HIC), as well as blisters forming on the specimen surface, designated hydrogen-induced blistering. These effects can reduce ductility and tensile strength. [16]

  5. 'Pushing Through Pain' Is Out, 'Prime Confidence' Is In: Life ...

    www.aol.com/pushing-pain-prime-confidence-life...

    Lucky for me, Taylor says we can actively develop prime confidence if it doesn’t come naturally. He recommends building a mental toolbox that you can pull from in times of duress.

  6. Corrosion fatigue - Wikipedia

    en.wikipedia.org/wiki/Corrosion_fatigue

    The lower stress-intensity regions are not affected, and the threshold stress-intensity range for fatigue-crack propagation is unchanged in the corrosive environment. In the most-general case, corrosion-fatigue crack growth may exhibit both of the above effects; crack-growth behavior is represented in the schematic on the left..

  7. Cellular stress response - Wikipedia

    en.wikipedia.org/wiki/Cellular_stress_response

    Stress proteins can exhibit widely varied functions within a cell- both during normal life processes and in response to stress. For example, studies in Drosophila have indicated that when DNA encoding certain stress proteins exhibit mutation defects, the resulting cells have impaired or lost abilities such as normal mitotic division and ...

  8. Superhard material - Wikipedia

    en.wikipedia.org/wiki/Superhard_material

    The shear modulus G is defined as ratio of shear stress to shear strain: G = stress/strain = F·L/(A·dx), where F is the applied force, A is the area upon which the force acts, dx is the resulting displacement and L is the initial length. The larger the shear modulus, the greater the ability for a material to resist shearing forces.

  9. Should you throw out your black plastic cooking utensils? - AOL

    www.aol.com/lifestyle/black-plastic-spatulas...

    Liu says her advice is the same as it's been: “If you can, reduce your use of plastic. Not just black plastic, but plastic in general, [which] can reduce your exposure to any harmful chemical ...