In order for an egg to float, about 4 tablespoons of salt must be dissolved in 12 to 16 ounces of water. Typically, fresh eggs sink to the bottom of a glass of tap water. An egg usually sinks in water because its density is greater than the density of…
When an atom is in an excited state, the electron can drop all the way to the ground state in one go, or stop on the way in an intermediate level. Electrons do not stay in excited states for very long – they soon return to their ground states, emitting…
They only remove particulate matter: Electrostatic air filters reduce levels of particles in the air such as dust, pet dander and other allergens, yet they do not address harmful gases at all. Volatile organic compounds (VOCs) and odors from sources such as tobacco smoke, wood smoke or pets will remain…
The Wall Street Journal reports the move mirrors a similar purchase by Amazon in April, which invested $70 million in Plug Power’s vehicles and also received rights to buy 55.3 million shares, or a 19% stake at the time. Amazon’s deal with Plug Power could rekindle interest in makers of…
Amazon to Launch ‘Amazon.eg’ in Egypt in 2021 Renowned multinational company Amazon is set to launch Amazon.eg in Egypt later in 2021, the shopping platform announced on Monday in a press release. Her announcement came during a Wednesday meeting between the Egyptian Minister of Industry and Trade Nevin Gamea and…
Like most Sunni, Shia Islam hold that all Muslims will eventually go to Jannah, and like the Ash’ari school, believe heedless and stubborn unbelievers will go to hell, while those ignorant of the truth of Islam but “truthful to their own religion”, will not. How will I go to heaven?…
It’s equal to the population itself because mean of the sampling distribution is defined as following Y = 1 n ∑ Y i where Y i ’s are the means associated with each sample and n is the number of samples we’ve obtained. Show activity on this post. The sample…
Everyone won’t qualify for student loan forgiveness. The Biden administration said that it’s considering an annual income limit of $125,000 for student loan borrowers to qualify for wide-scale student loan forgiveness. A wide-scale student loan cancellation of $10,000 per borrower would forgive a total of $321 billion of federal student…
Most alliums are perennials. If the species you are planting is winter hardy and the bulbs are well-suited to the growing conditions in your yard, they will usually return to bloom again. You may not see blooms this year, but you are sure to next year. Simply relocating your alliums…
The aluminium is non-magnetic, so the only effects are electromagnetic. The changing magnetic field will induce voltage and therefore current in the aluminium forming an electromagnet which will repel the coil. First, one important point must be clear: Magnetic shielding does not block a magnetic field. No material can stop…