Science Class Ideas?

Science
#14

What would be really cool is combining it with something like a resin casting session (@Lordrook?).

The silver nitrate christmas trees are super cool things to make, and a great example of a common reaction, but a bit on the delicate side. I’ve always wanted to see if we could displace the nitrate solution with something to clean the tree, drain the jar, then cast it in resin to encase it

Even if we can’t do it for the holidays I think it would be a cool crossover class between the resin SIG and Science if we can make it work.

#15

That seems like a decent solution. Better to preserve it and add to the class. We can see what other feedback we get.

#16

How about nitrogen-freezing ice cream spheres?

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#17

@Lampy and @TBJK can offer lots of advice on covering the crowd in nitrogen frozen ice cream…

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#18
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#19

EDIT:
also, some great pics:
https://talk.dallasmakerspace.org/t/dms-open-house-2016-follow-up/12636
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#20

I will never get tired of this.

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#21

Loved when mini-Tim licked the ice cream off his safety glasses. Wasn’t phased a bit.

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#22

Bravery in the direct line of fire! Nothing phased him except maybe vanilla.

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#23

I have a bunch of science class ppts on the science folder

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#24

What is resin SIG?

#25

I thought we had a SIG for Resin under CA. even if it’s not a SIG it’s something a lot of people do.

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#26

fischer esterification of methyl salicylate, wintergreen oil? Uses cheap and easy-to-find chemicals

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#27

I was actually looking into doing a test run for that next week some time. I think science already has everything for that but I need to check.

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#28

I could help out, because i did a preparation of methyl salicylate at home that followed this video: https://www.youtube.com/watch?v=lJLP2bcXDqY

i also designed a procedure for isopropyl salicylate, which has its own unique smell.

#29

Sure, I should be at DMS around 12pm on Sunday. I think we have everything we need but I am not 100% certain. I am also available on Tuesday any time if you would like to try then instead?

#30

chemicals needed:
*methanol
*salicylic acid
*98% sulfuric acid
*ice (for cooling condenser water)
*sodium bicarbonate

24/40 equipment needed (if we dont have something i can bring my own):
*250 mL round bottom flask
*crystalizing dish for water heating bath
*condenser
*stirring hot plate
*stirbar that fits in a 250 mL flask
*water pump
*vinyl tubing
*separatory funnel
*beakers
*simple distillation adapters
*two 50 mL round bottom flasks
*pH strips
*boiling chips

Sunday will not work for me. Maybe tuesday, i don’t get next week’s work schedule until sunday night

#31

Okay, so how about this… I check to see what all we have on Sunday when I am there. Also on Sunday you can message me your work schedule for next week. We can then arrange a time and I can let you know if we are missing any equipment. Would that work for you?

#32

Yea that works.

Also maybe we could have a few vials for ppl who take the class so they can take a sample home (like you said, ppl need to be interested enough to justify the class). It’s not safe for flavoring, but maybe you can use it to make fragrant candles for your house, what do you think about the safety of that?

methyl salicylate has a pleasant odor of root beer, mint lifesavers, wintergreen, christmas-y smell

#33

I have a couple; in the lettered subcats are the applications

  1. Interferometry–tabletop Michelson
    a) Holography, making 3D pictures (taught this)
    b) Non-destructive testing, projecting holograms onto
    tested objects (taught this)
    c) precision measurement, this is the NIST Standard (done)
    d) Gravity Wave Detection (almost over my head, way over
    my budget)

  2. Exotic Materials
    a) Aerogel, how to make and use.
    b) Graphene, making and curing.
    c) Superconductors, YCBO manufacture and utilization
    (Josh led this, we followed)

  3. Rocketry/Aerospace
    a) We have an engine test stand with gas & ignition control,
    thrust measurement, and data telemetry. (in my shop)
    b) ROS–Robot Operating System, AI released from
    Stanford 2012 (@Denzuko is the whiz in this, we should
    drag him in)
    c) Carbon Fiber manufacture. This is a big deal. Cutting
    and connecting pre-made CF is just messy; laying and
    forming CF is a burgeoning industry. (I’ve cut CF and
    built, but never made it)

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