Bufofrog

A Blue Whale is bigger than any dinosaur that ever lived. There you go, out of 8 billion people I have fulfilled your desire to meet me. Hello! I imagine there are probably many several billion people that also know this but I guess you have not met them. Planets aren't alive based on the generally accepted definition of life.

Hobs, you are correct about mass balances in most cases. In chemistry and most processes the use of mass balances ( the goes ins = the goes outs) is a great tool for figuring out what is going on in a reaction or process. In the case of fusion or fission you will find that the mass before the reaction does not equal the mass after the reaction.

Fair enough, but before the BB the universe was in a state with no matter no dimensions(?) and no decoupled forces - it is hardly what i would call a universe as we know it. That would be like me saying I am 14 billion years old because my molecules are from the energy of the big bang, on some level you can say that is true, but I am not making a birthday cake large enough for that amount of candles.

Most scientists agree that the universe is about 14 billions years old, so it is not eternal. Matter can be destroyed (converted into energy) and matter can be created (converted from energy).. AFAIK most scientist do not believe there is a boundary of the universe,

The easiest way to do this is to go to Amazon and search for 'temperature controllers'. There are many to choose from, you should be able to get one for about 30 dollars. The heater can be a 10 watt heater or just a 10 watt light. It will take a little trial and error to determine the best distance between the heater and sensor to maintain the temperature. A well insulated box should decrease any temperature cycling.

Just a couple of questions, approximately what is this certain hold temperature and do you care about the heat up and cool down rate?

I think they didn't find the aether because it doesn't exist.

The 14th through the 17th is the annual GBBC. This is a great way to join in on a scientific endeavour to monitor the the bird population around the world. Here is the site for the GBBC. As an aside, today was one of my favorite days, it was the first day since last summer that I have heard a Northern Cardinal sing it's territorial song. It was -2F but there was brilliant sun shine, and that was good enough for the Cardinals.😊

Is this going somewhere? If so could you ask the final question so we can move along, or are just wondering about energy and heat transfer?

Assuming the box contains air and dimensions are the inside dimensions and ignoring losses the approximate energy required is... Cv * Mass * temp = energy required 0.718 Kj/Kg-K * .034 kg * 1C = 0.024 kj or 0.00666 Wh unless i made a math error

Yeah, but "A Galaxy Died!" is a way better headline.🙄

I did get a chuckle out of the post. Are reptilian Pleiadians part of this, or is that a different thing?

I don't worry about it. I can't say it won't cause harm because I don't know that. If cell phone use caused 1 cancer per 100,000 then it does cause harm but the risk is acceptable for me.

Yes. Ionizing radiation is certainly dangerous in doses higher than background. X-Ray machine technology continues to decrease the dosage while increasing resolution. It is certainly possible, but the effects would be very small since studies to this point have not shown a clear correlation.

One study finding a possible issue is not very concerning. Work has been ongoing for at least 40 years on the health effects of nonionizing radiation and no clear dangers have been found, so I would not be concerned. However, if everyone who has cell phone starts dropping dead I will withdraw this post...🙂

I hope this guy didn't really waste 20 years on this! On the other hand if it makes him happy it is a rather innocuous hobby.

There are so many variables it is hard to tell. Are you sure the insects are grasshoppers? What species of grasshopper were they? Was exactly the same time as the year before? Was it a different time of day? Was the foliage the same lushness? Was the weather prior to visiting there significantly different than the year before?

No. Only H, He and Li were formed after the big bang. The heavier elements were formed in stars, the heaviest elements were formed in super novas.

Well, having to ask that question is not a good sign... You seem to be over thinking this and confusing yourself. Everything you see happened in the past. Images from your television happened a tiny fraction of a second ago. The image of the moon you see happened about 1 second ago. The image of the sun that you see happened about 8 minutes ago. The image of Alpha Centauri happened about 4.5 years ago. So lets look at this idea of a 'universal now'. In the universal now lets say that the Death Star destroys Alpha Centauri. Well obviously I won't be able to see that rather spectacular explosion from earth because the image of the exploding star will not reach me for another 4.5 years. So I will see that explosion 4.5 years into my future. Here is a simplified scenario just to get the concept: So if we are looking at a galaxy that is say 10 billion light years away, then we are looking at the galaxy as it was 10 billion years ago. That means its brightness, location and shape are all the way it was 10 billion years ago. In the universal now the galaxy is much farther away and probably much different in appearance. The galaxy might be 40 billion light years away in our universal now. So in the universal now, the light leaving that galaxy will not be something I could see until 40 billion years in the future on earth. This next paragraph is an unnecessary complication of the basic concept but is added for completeness. In reality a galaxy that is said 10 billion light years away means that the light from galaxy has been traveling for 10 billion years not that it was actually emitted from the galaxy when it was 10 billion light years away. The light was actually emitted from the galaxy when it was closer than 10 billion light years, lets say 8 billion light years (forgive me but I don't feel like getting the actual number) but since the universe is expanding as the light moves it must travel farther than 8 billion light years. PS don't get confused by years and light years. 10 billion years - time, 10 billion light years - distance. Hope that helps some...

Steel is an alloy of iron, so subjecting steel to heat will not make molten iron, it will make molten steel. Steel melts well above 1000 C so the steel would not melt. Yes, the wind would blow the Sparks through the air.

Do you have a source for this or is this something you heard somewhere? it is difficult to answer questions about how the wind would effect burning steel in an office fire when a piece of steel doesn't burn. You need to formulate a better question.

I would not expect there to be large amounts of molten metal in an office fire, certainly not enough to pour out of a window. Again the whole office fire thing is not important, I assume. What is your question? Is it something about how a stream of molten metal (a specific metal?) will react with the air or water or what exactly

I have ignited a strip of magnesium foil and it didn't have any flashes as it burnt. I looked at couple of you tube videos and I didn't see any flashes. Powders will flash, which is probably due to the uneven amounts of powder the fire front encounters. You talk about office fires, is this related to specific event of scenario? If not it would be best to leave out the office part as it only confuses the situation IMO.

I am not sure what you mean by flashes, could you expound on this?

Oh no, not this guy...