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The Bio Major
United States
Приєднався 3 бер 2017
This channel is a place to post videos on topics covered as a Biology major at the university level. My website thebiomajor.com is a collection of topics such as Anatomy, Chemistry, Evolution, etc...that I've found worth learning in my college career. In addition for anyone studying biology I hope as the website is developed it can be of use.
Portal Hypertension Presentation
This video is a basic presentation on portal hypertension for a vascular sonography class. Enjoy!
Переглядів: 31
Відео
Waveforms of EKG
Переглядів 503 роки тому
In this video, I review the basic waveforms of a typical EKG.
Backpacking Mt Timpanogos
Переглядів 1263 роки тому
This is just a video of my friend and I doing a one night backpacking trip to Mount Timpanogos. Be ready to adjust the volume between video and photos as the music levels change and I haven’t been able to figure out how to manage that. Beautiful views await those willing to suffer through the long steep grades. And the waterfall feature near the start of the trail is gorgeous! Almost worth a tr...
Backpacking Lake Blanche 9/11/20
Переглядів 533 роки тому
Just a short video of my overnight backpacking trip at Lake Blanche.
Blood Type Determination
Переглядів 1784 роки тому
In this video we determined my blood type in our physiology lab, by mixing samples of my blood with antibodies for the common A,B, and O antigens. We also tested for Rh factor and the results of each were negative. A positive result would be observed as damaged misshapen RBCs. Each of these slides were observed at 1000x magnification.
Physiology Lab: Frequency Muscle Stimulation
Переглядів 6 тис.4 роки тому
In lab tonight we demonstrated the additive effects of tetanic contraction.
Ethanol Distillation from Yeast Sugar Wash
Переглядів 79 тис.4 роки тому
In this video I’ll be distilling the ethanol produced from the sugar wash fermentation video. Here’s the link to the video where I make the sugar wash to begin fermenting the ethanol. The amounts and procedure can be found here: ua-cam.com/video/dPbpXAEaVpg/v-deo.html
Red Blood Cells in Hypertonic Solution of 2% NaCl
Переглядів 2,7 тис.4 роки тому
Heres a quick video of a lab experiment we did in Physiology. Simple diffusion occurs when solutes move across a semi-permeable membrane from a high to low concentration gradient. In this example, red blood cells were placed in a 2% solution of NaCl (Sodium Chloride or table salt.) The higher concentration of solutes in the surrounding fluid caused water to flow across the cell membrane, leavin...
Epithelial Cheek Cells
Переглядів 2864 роки тому
Had the idea to look at some epithelial cells swabbed from inside my cheek, tonight under the microscope. I am not a histologist, and so I can’t really identify much beside the large nuclei, but they are still pretty cool to look at nonetheless.
How to Make Bar Soap (Cold Process)
Переглядів 8125 років тому
In this video, I show you how to make bar soap using the cold process. This is an updated version of the previous video I posted showing how it lathers up. This was the first attempt with the formula I used and it worked great. The only thing I'd change is adding more fragrance. I wasn't sure how much I would need but the next batch I make, I'll double or triple the amount I used.
Melting Point Apparatus Improved Quality
Переглядів 5 тис.5 років тому
I've been wanting a melting point apparatus for a while now so when I start to seriously synthesize chemicals, I can get a general idea of their purity. I won't have the funds for older NMR or IR spectrometers so the basics like melting point will have to do for now. After finding a few on eBay, I took to youtube to see whether there were any reviews. The particular one he uses in the video is ...
How to Make Ethanol (Fermentation)
Переглядів 118 тис.5 років тому
This is the first of two videos on how to ferment and distill ethanol at home. Ethanol is used as a chemical solvent and is very useful in many laboratory reactions. As well, I will be using it to extract fragile oils and act as a carrier for my perfumes. This video shows how to set up for a sugar fermentation of ethanol and the next video will show me distilling off and further purifying the e...
SH-3 Hot Plate Size Comparison
Переглядів 2,2 тис.5 років тому
I got my new hot plate in the mail, and I’m super excited to use it. It’s much larger than the SH two and I think it will heat up faster. I’ll make another video soon of a distillation where you can see it in action!
Alcohol Hydrometer eBay Review
Переглядів 2,4 тис.5 років тому
In this video I test and alcohol hydrometer that I purchased from eBay to use to test the concentration of fermented ethanol. I run over what’s included how much it cost and show you whether not it works!
Review/Test of SH-2 Hot Plate Magnetic Stirrer
Переглядів 40 тис.5 років тому
This is a review/test of the SH-2 hot plate magnetic stirrer. I purchased this for $51.80 on eBay with shipping included. For the price, I was skeptical and you never know exactly with eBay sometimes. A hot plate is extremely useful when conducting distillations and here I give some feedback on my first impressions and testing it by boiling water in a beaker. Overall, pretty pleased with it. I'...
Crazy Looking Ciliated Microbe Under Microscope
Переглядів 605 років тому
Crazy Looking Ciliated Microbe Under Microscope
هل نستطيع تخفيفه بالثلج وشربه. هل هو مسكر؟
The fact is as i was told by a four E's representative,(We make all the copys you see with different labels! They pay us a fee for using their name on our products! ) so if you see the same mixer with different company names, there is only one company responsible for making it! Take care
>making hooch w baking yeast >have molecular sieves to dry product ;)
I used it a few times with high temperatures. Today I wanted to heat up something and it just stopped working; I heard some weird sounds it seemed like internals were melting and after that the plate just stayed cold the entire time. This surprised me because i only had it on low heat
can i goes on 50 degrees?? cuz mine only activated at 110 degree
What do you mean?
it does not have an auto thermostat? so you cant make it heat a solution to a certain temp? means you have to stand next to it and check temps all the time? oh no. Id never buy one without an thermostat.
Very informative, though i will really need to ask, would Grahm condesor make much difference in the distillation process
I have the same alcohol hydrometer, I have a question. Do 70 means proof or ABV in this one which you use
Hello sir I'm a bachelor's research student. Sir i will be grateful if you help me. can you please tell me how separate ethanol from fermented mesh (agroindustrial pretreated). Pls sir reply 🙏🏻🙇♀️
Won't filtration solve this??
Can the unit be set at 75° to the point the temperature won't reach any higher than 75°
Mine is heating up while the heater is off any idea how to fix ?
same with me and the Stirrer not working also😭
This is because these companies have no quality control departments anymore! They just thrive on greed and quantity and never quality! So sad as we are not made of money, and some of us literally sacrifice certain basic needs to get our chemistry equipment and we wait impatiently for them to get to us only to find that either the goods we waited for are malfunctioning, glassware broken do to their shipping department not giving a shit and just packing the 2 500 ml flasks in a bag and shipping it ( happened to me so many times! ) the days of getting decent equipment at a reasonable price are all but over! Now we have to spend a lot more money and even then keep fingers crossed that everything is ok! I feel all you fellow amateur and students who are strapped for cash, pain!!!😢 take care my brothers! Keep the faith!
Warming is not necessary Yeast also need nutrients, but most brewing yeast sachets include this. It's good enough for 4 gallons. You dont need 21 days, more like 2 days. If it takes longer, its too cold or you've done something else wrong.
Can i the same yeast that is used for bread elevation??? It is Saccharomyces serevicieae.
I have a question، you can make meth and teach me.
Distilled water,sugar and yeast ratios plzz
Did this raise your ethanol percentage?
Hi ........is Very good 🎉🎉🎉
we are not the same u making ethanol for experiments i make ethanol for drinking
An important discussion would have involved the history of where climate change theory originates. BP created the term “carbon footprint” in a marketing stunt after the biggest oil spill in modern history to direct the attention off them and shame all of us instead. It worked. Carbon is NOT responsible for “climate change”. This is such rubbish. The truth is, the so-called smart humans know very very very little about anything, especially the climate and the mind-blowing abundance of connections & complexities in it. Yet because we understand & know a few things, we believe we know it all and how to “fix” it. Total insanity. Meanwhile, the ultra rich like the Rockefellers & Rothschilds (who were the actual ones responsible for the Industrial Revolution) - who don’t care at all about the planet - are using faux science/education to further their selfish & psychotic goals: total control over all the wealth in the world. Just look at the 2030 agenda. You can trace it all back to Cecil Rhodes…. An ev!l, communist PDF file with a genius ideology & plan to take over the world, literally. The creeps who worshipped him, now own all the central banks, big education, big media, big entertainment, big pharma, big agriculture… they own nearly everything. We need to prepare for CBDCs/digital currency system. It’s coming, and it will trap anyone who isn’t paying attention
What is that airlock? Please help
To assist with carbon dioxide escape from the glass container and prevent oxygen from entering.
I used to have the same hotplate stirrer, that thing got plenty hot.
Hmmm... size is nice, but as they say, it's what you do with it that counts.
ua-cam.com/video/x8ET09nlLgU/v-deo.html 🌹
How mnay lb of sugar per gallon of water ?
Temperature of the alcohol matters as well when proofing it.
what did you do with the product?
I ended up putting it in a perfume I made for my ex. Haha
@Josh Wilson nice haha... hey thanks for the response just got me a rotovap and some glassware just wondering what I can do with it overall
er wordt niks uitgelegd tijdens het filmpje!!!?
ورده حبيبي ابو حسين
How to make ethanol from algae?
25% of the video to cut the tape around the styrofoam? Come on dude! You're just annoying to watch!
Where did you get that equipment? Do you have a list so I can buy it?
amazon Vevor 32 piece 24/40 lab glassware kit organic chemistry, then you need a heating mantle
can we eat it?
please help me is that plate bivolt?
now can the sh2 do the same?
how did it stir without a.. stir? lol
should be worried about methanol?
How sterile does this set up have to be?
The more, the better but a simple diluted bleach solution did the trick before I bottled everything up.
why you don't have gloves on while you are working in the lab?
can we drink it.
You could have told us how hot it gets. You told us RPM.
And the minimum temp it can maintain too. Even in product listings, it's as if minimum hotplate temp is top secret info. 🙄
Bro i don't need the unboxing part
I do
Relevancy is proportional to the quality of your delivery driver 😂
hello, doesn't heating the solution before adding the yeasts help with the reaction, as we need the yeasts to perform anaerobic respiration ?
I‘m not sure what good that would do, but I‘d be worried about killing the yeast with heat.
@@joshwilson9393 let me explain here : by heating beforehand the water, there's less O2 dissolved in the water so, if the yeast is already activated, by heating water and letting it cool down (with no contact with the outside air) and then add the yeast, i think you can shorten your reaction time as the yeast will only need to perform the synthesis of ethanol, and not "eat" all the O2 in the water and the jar
@@2gr_t95 that’s smart! It seems like it would work theoretically.
I dont think that is the reason why first booling a highly concentrated sucrose solution speeds up fermentation. There are 2 benefits to first boiling a saturated sucrose syrup solution prior to dilution and addition of yeast. 1. It sterilizes the sugar so yeast will not compete with bacteria while fermenting). 2. Yeast has a strong preference for glucose over fructose as a substrate. By boiling for an extended period (particularly if the solution is firstly slightly acidified e.g with citric acid) hydrolysis of sucrose into glucose and fructose monomers occurs. This greatly speads up the rate of fermentation since the yeast can directly metabolize the glucose preferentially. There will still be a significant quantity of fructose in solution by the time ethanol concentrations rises to a level toxic to the yeast itself. If the end goal is ethanol production this saves a lot of time. It's true that fermentation requires an anaerobic environment (otherwise you get lactic acid instead of ethanol, the amount of 02 in the water is negligible if fermentation occurs under an air lock and is consumed very rapidly very early on. So this factor can be safely ignored without any noticeable effect on yield.
What is the exact temp. Of distillation? And how to control it?
78 degrees
@@elix_0512 thank you 🙏
@@fahadcccps my pleasure
Please name some of the equipments used to manufacture alcohol here.
Please name some of the equipments used to manufacture alcohol here
What is the Alcohol percentage you obtained?
𝙥𝙧𝙤𝙢𝙤𝙨𝙢
Is it drinkable?
I wouldn't try it, I'm uncertain what tests there are to ensure there is no methanol present and you wouldn't want to go blind or get brain damage from drinking this if it had any in there. I'm sure there is some way for people who distill drinkable alcohol to check for this though.
If broth-1 have High ethanol concentration and broth-2 have low ethanol concentration... by distillation we collected same volume from both ....then which same have High ethanol concentration...?
have you ever tried having the condenser collum vertical instead of horizontal?
ebay search term ur looking for is Fractional Column