cphajduk
For instance, if you have pure Titanium, pure Magnesium, pure aluminum in a vacuum at room temperature and proceed to introduce oxygen, you get the following reactions (simplified elemental chemical reactions, the Enthalpy of formation is what is important here):
Ti + O2 -> TiO2 (Std. Enthalpy of formation is -945kJ/mol)
Mg + O -> MgO (Std. Enthalpy of formation is -601kJ/mol)
4Al + 3O2 -> 2 Al2O3 (Std. Enthalpy of formation is -1675kJ/mol)
As a result, aluminum is most reactive, followed by titanium, then magnesium.
This is the reason why aluminum is used in solid rocket motors and various other explosive devices.
Under different conditions, these numbers may change: for instance a reaction with water instead of air may yield different enthalpies. At quick glance in water, titanium is actually least reactive when compared to aluminum and magnesium.
I'm pretty sure YouTube is doing sentiment analysis on all comments and artificially promoting the ones that tend to be positive.
The data in the article could easily be cherry-picked.
It's just he said she said.
Raising the 'right' amount should be the goal. Not 'as much as possible'
Since there is so much political contention to building more housing, there is no chance that housing prices will decrease (nobody wants to see their property lose value).
Now they are complaining about the problem they caused?!?
I don't know if this is ironic, justified or just funny. You can't have your cake and eat it too.
Consecutive stay in the ISS has been completed for 355 days (almost year) with less than 10 people onboard at that time.
"I’ll justify this figure in detail later on. For now, consider that each SLS launch costs $4.2B, and that developing just the Orion space capsule has cost $20B. The ISS, which is functionally close to a Mars transfer vehicle, has so far cost $250 billion."
With absolutely no regard for the massive cost per kg to orbit improvement being achieved by new space companies (SpaceX, RocketLab, etc.)
The author has cherry-picked his facts to fit his opinion.
Although, I don't actually think they really tried or were ever going to try to catch him.
Same thing for me, the feature was disabled shortly thereafter.
Don't worry about competitors, worry about making your product the best it can possibly be (which if successful would be better than competitors).
Eliminating words from a vocabulary is very 1984-like. Those words have a deep historical meaning, allowing ourselves to just "remove them" is akin to forgetting and ignoring the dark past of slavery, rather than remembering and acknowledging it (with the hopes it will never happen again).
Saying that it helps change habits (in my opinion) is analogous to saying that preventing kids from playing violent video games will reduce mass shootings (there is evidence it does not). I disagree with your premise that this pushes us to change habits and is only a mechanism to be ashamed of our shared (and dark) history. Lest we forget.
ActuallyOpenAI ^TM
The top performers in my college class, struggled to get internships within my internship-mandatory program.
> "Yeast cannot produce B12, which is naturally produced only by some bacteria.[8] Some brands of nutritional yeast, though not all, are fortified with vitamin B12. When it is fortified, the vitamin B12 (commonly cyanocobalamin) is produced separately and then added to the yeast."
Furthermore, fortified all purpose flour is not the same as fortified nutritional yeast. In fact, what you are referring to is likely _enriched_ all purpose flour. This has vitamin B1, B2, B3, B9 and iron added to it. There is no addition of vitamin B12.
The organisms that provide us vitamin B12 tend to host said bacteria and archaea within their GI.
Alternatively supplements are provided (as I mentioned). Nutritional yeast, dairy, and vitamin pills are some of the ways in which vegetarians survive. Apparently certain beans are high in B12 as well!
If you do not have supplements or eat this type of vitamin containing protein, you risk paralysis and death with a 2+ year absence of the vitamin.
I wouldn't be surprised if there are other missing nutrients as well.
A human with a rock/hammer could have accomplished the same thing in an hour, conservatively a day at most.
According to the energy-time uncertainty principle we don't even know when exactly the RF waves that transmitted information hit the receiver on Earth either.
I honestly haven't used crypto this way much, but it seems like it would be a decent way to transact across borders.