Mayhem's latest activity
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Mayhem replied to the thread Biology Prove that evolution is constant (Provide at least two arguments to support your position).Very good example and I vaguely recollect a video demonstrating this. Something along the lines of e coli (or another bacteria) on a... -
Mayhem reacted to zapatasuwjw's post in the thread Biology Prove that evolution is constant (Provide at least two arguments to support your position) with
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i saw Bacteria in hospitals get exposed to antibiotics → some survive → next generation is more antibiotic-friendly. That’s evolution... -
Mayhem replied to the thread Random Thoughts 7.Our interpretations of stories are interesting, because we will ascribe meaning to narratives as being metaphors, allegories or...
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Mayhem replied to the thread Random Thoughts 7.I impressed your mother carried you to your As someone from the upper middle class (arguably only recently), the careers that lead here...
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Mayhem replied to the thread Chemists finally know why palladium beats nickel at C–H activation."Really, nobody took a step back and asked..." And then proceeds to present extremely non-trivial physical chemistry. I find that many...
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Mayhem replied to the thread Humidity of a saturated NaCl solution with anticaking additive.Purity of x% usually just means "we made sure it is x% pure, we literally have no conclusive data on the remaining percents". Also 0.1%...
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Mayhem replied to the thread Humidity of a saturated NaCl solution with anticaking additive.I mean salt for technical use, like for water softening (dish washers) or deicing, should be cheaper than food grade table salt.
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Mayhem replied to the thread Humidity of a saturated NaCl solution with anticaking additive.Can't you use general purpose salt (non food grade) containing fewer additives. What does the salt used for dish washers contain aside...
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Mayhem replied to the thread Resists for etching Aluminium with NaOH.Why are you resorting to chemical means rather than simply poking holes? 0.3 mm is just aluminium foil?
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Mayhem replied to the thread Random Thoughts 7.Yes, because intelligent life wouldn't visit a planet where my in-laws reside.
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Mayhem replied to the thread Solubility of MgSO47H2O in water.Don't use SDS and similar date for solubility. They can be wildly inaccurate. A reaxys search shows that the solubility of the...
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Mayhem replied to the thread Random Thoughts 7."Why haven't aliens visited us?" For the same reason dolphins don't build rocket ships. Intelligent life is not necessarily curious life.
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Mayhem replied to the thread Enthalpy - published values.Please provide your reference. One must be very careful when interpreting enthalpy values.
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Mayhem replied to the thread Why does having 8 valence electrons make an element inert?.Strictly speaking, Ca does not have a filled outer shell in the sense you are referring to. It has 2 e in the 4s orbital. Elemental Ca...
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Mayhem replied to the thread Solubility of MgSO47H2O in water.Saturate at 40 C, cool to r.t. under lid. Add water until dissolved or simply just filter and add 5% more water.