virtual learning articles

Last Updated on June 1, 2025 by Muhamed Elmesery Imagine that you have a cup with a hole in the bottom. If you pour honey or glycerin into the cup, you will find that the cup drains very slowly. But in the case of water, the cup will drain much more quickly. That happens because “viscosity” is higher in the …

Last Updated on May 4, 2025 by Muhamed Elmesery Just imagine that you can conduct hard experiments remotely from your own home or classroom, without feeling pressured and no need to go to the real lab or provide expensive materials and equipment. Thanks to technological development, this is now possible through the technology of virtual laboratories.  In this article, we …

Last Updated on May 5, 2025 by Muhamed Elmesery Artificial intelligence (AI) is no longer just a concept in sci-fi films — it’s here, and we are already using AI in our everyday lives. AI is seriously changing the way we live. From smart home devices to self-driving robots, artificial intelligence will become an important part of our society. Artificial …

Last Updated on June 1, 2025 by Muhamed Elmesery The XTT assay is an assay used for cellular metabolic activity measuring as an indicator of cell cytotoxicity, viability and proliferation. XTT assay stands for (2,3-bis-(2-methoxy-4-nitro-5-sulfophenyl)-2H-tetrazolium-5-carboxanilide) which is a tetrazolium-based compound. XTT is a colorless or slightly yellow compound and becomes brightly orange when reduced. In this article we will explain …

Last Updated on May 7, 2025 by Muhamed Elmesery When you’re reading a scientific text, or having a science lesson regarding bonding and valency, you may come across the term valence electrons. But what does it mean? This is what we will know in this article in detail. In addition to explaining how to find valence electrons in more than …