Can liquid hydrogen be used as fuel?

Can liquid hydrogen be used as fuel? Liquid hydrogen can be used as the fuel for an internal combustion engine or fuel cell. What are the advantages of using hydrogen as a fuel? What are The Advantages of Hydrogen Fuel Cells? Renewable and Readily Available. Hydrogen is a Clean and Flexible Energy Source to support […]

What do they do at NIST?

What do they do at NIST? Founded in 1901, NIST is a non-regulatory federal agency within the U.S. Department of Commerce. NIST’s mission is to promote U.S. innovation and industrial competitiveness by advancing measurement science, standards, and technology in ways that enhance economic security and improve our quality of life. Why is NIST important? A […]

How is Burger vector calculated?

How is Burger vector calculated? For the determination of the Burgers vector you need to insert the type of an expected dislocation. Then go around the dislocation core (line) adding the same amount of steps (vector). The missing vector component is the shift caused by the dislocation. That’s the Burgers vector. Why does a dislocation […]

When a metal is heated its density decreases?

When a metal is heated its density decreases? Answer: When a metal is heated, its density decreases. There are two sources that give rise to this decrease of ρ: (1) the thermal expansion of the solid and (2) the formation of vacancies (Section 4.2). Consider a specimen of gold at room temperature (20°C) that has […]

How do you determine your foundation size?

How do you determine your foundation size? How to Calculate Footing Size Determine the width and length of the cement slab in inches. Divide the width by 12 to convert it to feet. Divide the length by 12 to convert it to feet. Determine the depth or thickness that is required for the footing in […]

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