28-09-21
Basic electrical quantities: current, voltage, power Basic electrical quantities:…

    Basic electrical quantities: current, voltage, power     Voltage and current are the cornerstone concepts in electricity. We will create our first mental models for these basic electrical quantities. We will also talk about power, which is what…

    Basic electrical quantities: current, voltage, power     Voltage…


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28-09-21
Preparation of activated carbon from biomass and its’ applications in water and gas purification Preparation of activated…

    Preparation of activated carbon from biomass and its’ applications in water and gas purification     Due to its versatility and wide range of applications, activated carbon is widely used as contaminant removal media. Recent research have focused on…

    Preparation of activated carbon from biomass and its’ applications…


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28-09-21
Auto-disable syringes are not for needle programmes Auto-disable syringes are not…

    Auto-disable syringes are not for needle programmes     WHO and its partners recommend the use of auto-disable syringes, "bundled" with the supply of vaccines when donor dollars are used, in all mass immunization campaigns, and also…

    Auto-disable syringes are not for needle programmes     WHO and…


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27-09-21
The air conditioning trap: how cold air is heating the world The air conditioning trap: how…

The air conditioning trap: how cold air is heating the world On a sweltering Thursday evening in Manhattan last month, people across New York City were preparing for what meteorologists predicted would be the hottest weekend of the year. Over the past…

The air conditioning trap: how cold air is heating the world On a…


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27-09-21
Why is fiberglass mesh needed? Why is fiberglass mesh needed?

Why is fiberglass mesh needed? Composite sheets of fiberglass mesh for marble reinforced polycarbonate were prepared by hot compress molding. The effects of lay-up structure, lay-up angle, area density of fiberglass mesh and the thickness of PC film on…

Why is fiberglass mesh needed? Composite sheets of fiberglass mesh…


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27-09-21
Cast Iron Pipe Cast Iron Pipe

  Cast Iron Pipe     Cast iron pipes can fail in many modes which in general can be summarized into two categories: loss of strength due to the reduction of wall thickness of the pipes, and loss of toughness due to the stress concentration at the tips…

  Cast Iron Pipe     Cast iron pipes can fail in many modes which in…


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27-09-21
What is a rod seal? What is a rod seal?

What is a rod seal? There are so many different types of seals out there that it might be hard to understand all the different terminologies and functions. In this article, we give you our guide to what rod seals are, how they are manufactured and why…

What is a rod seal? There are so many different types of seals out…


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27-09-21
What Is A Seed Tray? What Is A Seed Tray?

What Is A Seed Tray? Starting your own plants from seed will often give you healthier plants at a lower cost.  If you want to start seeds in bulk, you may want to consider a seed tray to help with germination. So, what is a seed tray?  A seed…

What Is A Seed Tray? Starting your own plants from seed will often…


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27-09-21
Why stainless steel corrodes Why stainless steel corrodes

  Why stainless steel corrodes     Stainless steel has unique properties which can be taken advantage of in a wide variety of applications in the construction industry. This paper reviews how research activities over the last 20 years have impacted the…

  Why stainless steel corrodes     Stainless steel has unique…


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27-09-21
Are stinky inflatable pool toys putting your kids at risk?  Are stinky inflatable pool…

Are stinky inflatable pool toys putting your kids at risk?  The researchers expressed concern that some of the products contain potentially hazardous chemicals that could pose a risk to children’s health, depending on the degree of exposure and…

Are stinky inflatable pool toys putting your kids at risk?  The…


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