Carbon dating is a real-life example of a first-order reaction. This video explains half-life in the context of radioactive decay.
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Missed the previous lesson? https://www.khanacademy.org/science/chemistry/nuclear-chemistry/radioactive-decay/v/alpha-beta-and-gamma-decay?utm_source=YT&utm_medium=Desc&utm_campaign=chemistry
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What was the equation or formula they used to get this?
For instance, if I want to determine someone's BPM, I find a persons pulse and count the beats of their heart for 15 seconds. I times that by 4. Then I have the persons pulse (BPM).
It is easy for me to explain. Yet no one can explain how they figured out how the half life of Carbon 14 was observed.
carbon dating is such complete bullcrap it never actually work they dated a seal to be 10000 years old LMAO idiots dont believe this bullcrap there is ZERO evidence of anything being more than 10000 years old this carbon dating bullcrap is just propaganda to push the evolutionist agenda
Yes, because fundamentally the half-life of C-14, defined as 5740 years, is the time at which the probability of any one carbon atom within the sample having decayed is 50%. Thus, if you keep adding more an more carbon atoms, each atom after 5740 years will have a 50% chance of decaying, and half the atoms, by probability, will be nitrogen. Of course, this is completely down to probability and so there may be 40% carbon to 60% nitrogen, but on average, 50% will decay regardless of the amount due to the fact that this probability is the probability of an atom having decayed after the half-life has elapsed. It is a bit like if you had a claw machine which randomly gives away prizes, and on average gives away 50% of its prizes after an hour, where there are 1000 prizes initially. You would expect that after an hour, 500 prizes would remain and 500 prizes would have been won by probability. For this example the remaining prizes would represent Carbon, the prizes given away would represent Nitrogen, and the half life would be one hour. If, however, we started with 2000 prizes, we would still expect that, due to the fact that after one hour the chance of a prize being given away is 50%, that 50% of the prizes would be given away, which is equal to 1000 prizes. Applying this back to your question, due to the fact that the decay is a percentage of the initial mass, it does not matter whether you have 1000 or 1000000 carbon atoms, half will still remain and half will decay as the decay is always proportional to the number of atoms present.
+Christian Holland calculations that you and they pulled from their rears apparently. We have formulas we use to complete problems but of course, you can't give me the formula they use to determine the number. There is NO formula. And you have faith in what you believe is true, it is not based on facts or truth. So keep repeating what you were taught. It is nonsense.
@ 09:45 with that google subtitle program: 'So after one house wife you'll just looking at one adam after a five thousand seven hundred"
Ah, that makes sense!
Anyway, must admit that this is pretty awesome, it really saved my ass for this horrible exam I have soon..
Awesome Video! They're Great! Why didn't my teachers back in grade school teach this? They just talked about what was in the book, or just said to study out of the book! I wanted teachers who KNEW HOW to teach! You'd have made an AWESOME TEACHER in my middle or high school! It's great to have someone like you educating people who don't know this or didn't learn this, although I know this already, for the most part, I'm just keeping myself "up to date." THUMBS UP!
I love this edgy look! I was so excited that her hair, even as short as it is now, was still able to be put into the fun and trendy dutch pigtail braids! Instead of braiding to the ends, I ended them in close together pigtails at the nape of her neck. After I finished braiding, I tugged on the outsides of the braid gently to loosen them and make them a little messy and fun! Since she doesn’t have enough hair to tie around the elastics, I made sure to use elastics that matched her hair so they blend in as much as possible. You could also cover them with clips or bows! A view from the back of her Dutch pigtail braids! A great braid for short hair is a micro accent braid! My biggest tip for braiding short hair would be to add in small slices of hair rather than big ones. I did a small (micro) braid along a slightly curved deep part for anther cute and edgy look! You could also do another one next to it if you wanted a little more to the look, but I really liked how simple this one was. You can see how the part curves a little better from this view of the back. I ended the braid close to the head with an elastic that matched her hair. For our fourth style, we did a 3/4 french braid! Super simple but also super cute! You could do any type braid! It would also look cute using a Dutch braid or a fishtail braid! I loved the side view of this braid! I will for sure be doing this one next time she goes to gymnastics or swimming, whichever comes first! Our last braid is two four dutch lace braids into two loops in the back. Start off by parting the hair down the middle. On each side of the part, do a dutch lace braid, adding hair in from only the section closest to the part as you braid. Tie the braids together in the back with a small elastic and before you pull the hair all the way through to make a ponytail, leave it in a cute little loop! If the hair is a little bit longer, you could do a tiny bun. Repeat this directly under the braid you just did so you have two rows and two loops.
We will have to be coming up with lots more short hair braids in the future, so be sure to give us a follow over at our newly redesigned blog Abella’s Braids to see more as we do them!
Thanks for reading! See you again this time next month!
love these ideas! My daughter recently cut about 8 inches off her hair and is loving her shorter hair, but I’ve mostly been at a loss of what to do with it! Thanks!
Abella has been begging me for at least a year, probably closer to two years, to cut her hair. I posted a photo on Instagram with a question in the caption. “Abella has been begging me to cut her hair short, do you think I should let her do it?” Almost everyone said “YES!” So thanks to all of the good advice from my followers, we did it…and we haven’t regretted it for a second! I think she looks so cute and it really fits her personality! It’s for sure a lot harder to come up with braids but it’s pushed me to step out of my comfort zone! We wanted to show you that even if you have short hair, there are lots of cute braids you can still do!
This first braid (above) is three ladder braids. Start out with a part deep to one side. On the side with less hair, start out by doing a waterfall braid along the part. Under that one, do another waterfall braid, but incorporate the waterfall pieces from the one above it as you braid. Under that one, do a french braid. Incorporate the waterfall pieces from the second braid as you go. We braided each one to the ends and used elastics that matched her hair to tie them off.