| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| lipebcampos | " I tried to access open2study, but the site is not offering courses anymore. This search tool helped me find courses https://classpert.com " | Read more » | over 5 years ago | |||
| breadytoroll | "@homechemist what is this "multi range LED" you refer to? I did a quick search online that didn't turn up any continuously varying LED's, could you..." | Read more » | over 9 years ago | |||
| warren | "Wow, @homechemist just posted a great update, here: http://publiclab.org/notes/homechemist/06-12-2015/the-importance-of-infrared-radiation-infrared..." | Read more » | over 9 years ago | |||
| chemcarr | "Markdown Great ! I am thinking on similar lines. You have a great CuSO4 calibration curve there. I work with aquaponics lab ion the incredible aq..." | Read more » | about 10 years ago | |||
| homechemist | "Interesting, it´s kind a Tyndall effect no?, but however i think that is not enough accurate to "select" an specific wavelength like an specific fi..." | Read more » | over 10 years ago | |||
| amysoyka | "*sorry the PIC with my hand around it didn't give it justice...here is a better shot, with the blackout paper. " | Read more » | over 10 years ago | |||
| amysoyka | "To highlight: The range of colours you get from different length glue sticks. What it looks like normally on my hand. (It works best if you w..." | Read more » | over 10 years ago | |||
| amysoyka | "I've been experimenting with lots of things... I ended up getting sucked up into the world of photography as a result. (Which covers a lot of this)..." | Read more » | over 10 years ago | |||
| homechemist | "okay great, it should be perfect for starting, i have read one of your projects ( element's identification) and i have been working on that for a t..." | Read more » | over 10 years ago | |||
| amysoyka | "I found that this online course went into s lot of that at a basic level. https://www.open2study.com/courses/chemistry " | Read more » | over 10 years ago | |||
| homechemist | "well, yeah that is absolutely true, red cabbage contents Anthocyanin which is a perfect universal indicator(in fact , I use it as ph indicator fo..." | Read more » | over 10 years ago | |||
| amysoyka | "I just finished an online chemistry course - and in that the bloke mentioned that boiled red cabbage is natures perfect universal indicator. Could ..." | Read more » | over 10 years ago | |||
| homechemist | "well , i suppose it should work but firstly we have to develop a color-based nitrate detection , we can try to use nitrate detection reagents for w..." | Read more » | over 10 years ago | |||
| warren | "Interesting! It'd be neat to look at colorimetric nitrate detection with this approach. http://publiclab.org/wiki/nitrate-detection " | Read more » | over 10 years ago |