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Re: Awesomeness

Posted: Wed Jan 27, 2016 3:33 pm
by MistaVega23
mac_d wrote:
MistaVega23 wrote:Got married in an ice chapel in Finland last Wednesday. Was pretty cold, but the whole experience was amazing!

You can imagine my mood dropped when we touched down in the UK to the same pathetic weather it was before we left....

Congrats on the wedding.
Thanks :thumbup:

I was hoping to do some ice karting out there, but after we hit the slopes and did some husky sledging we literally had no money left!

Re: Awesomeness

Posted: Sun Mar 13, 2016 8:52 pm
by Argentum
I have no idea if people outside the UK can view this video, but for those who can, this helicopter pilot is pretty impressive,


http://www.bbc.co.uk/programmes/p03lwnyv

Re: Awesomeness

Posted: Sun Apr 03, 2016 10:17 am
by mac_d
Argentum wrote:I have no idea if people outside the UK can view this video, but for those who can, this helicopter pilot is pretty impressive,


http://www.bbc.co.uk/programmes/p03lwnyv
Brilliant video, I think actually being on that helicopter would be simultaneously utterly awe-inspiring and pant-wettingly scary. The guy that filmed it should invest in a decent quality camera though (or my interent connection sucks and put it into something that looked obviously lower than 720p).



Anyway, for me it's that time of year again. Since early in high school, my buddies and I would watch Wrestlemania. Back then, we used to watch it every week. These days, we pretty much just watch this. But it's always fun, and I love the events where we all stay up late eating stereotypical american foods. Don't really care about the show. Plus one of my pals is coming at 15:30 to watch the GP too.

Re: Awesomeness

Posted: Mon Apr 04, 2016 7:52 am
by minchy
mac_d wrote:
Argentum wrote:I have no idea if people outside the UK can view this video, but for those who can, this helicopter pilot is pretty impressive,


http://www.bbc.co.uk/programmes/p03lwnyv
Brilliant video, I think actually being on that helicopter would be simultaneously utterly awe-inspiring and pant-wettingly scary. The guy that filmed it should invest in a decent quality camera though (or my interent connection sucks and put it into something that looked obviously lower than 720p).



Anyway, for me it's that time of year again. Since early in high school, my buddies and I would watch Wrestlemania. Back then, we used to watch it every week. These days, we pretty much just watch this. But it's always fun, and I love the events where we all stay up late eating stereotypical american foods. Don't really care about the show. Plus one of my pals is coming at 15:30 to watch the GP too.
Hope you and your mates had a good night. Unfortunately none of my friends were able to stay up that late with kids and all, but what a great event!

After pretty much a full year with lack luster ppv's, they put on a really good show.

Re: Awesomeness

Posted: Sun Apr 24, 2016 8:34 pm
by minchy
I'm about to do something that may possibly change the current direction of my life. It's either going to be amazing or devastating with not much in between. Safe to say that I'm absolutely bricking it and I'm just glad I've not had a heart attack already today the speed my heart has been beating for the past 6 hours or more!

Re: Awesomeness

Posted: Sun Apr 24, 2016 8:39 pm
by Asphalt_World
minchy wrote:I'm about to do something that may possibly change the current direction of my life. It's either going to be amazing or devastating with not much in between. Safe to say that I'm absolutely bricking it and I'm just glad I've not had a heart attack already today the speed my heart has been beating for the past 6 hours or more!
Are you about to become an F1 Fanboy?

Re: Awesomeness

Posted: Sun Apr 24, 2016 8:59 pm
by minchy
Asphalt_World wrote:
minchy wrote:I'm about to do something that may possibly change the current direction of my life. It's either going to be amazing or devastating with not much in between. Safe to say that I'm absolutely bricking it and I'm just glad I've not had a heart attack already today the speed my heart has been beating for the past 6 hours or more!
Are you about to become an F1 Fanboy?
Sh*t, you found me out! :lol:

But thanks for that, I needed a laugh!

Re: Awesomeness

Posted: Mon Apr 25, 2016 12:35 pm
by painless
minchy wrote:I'm about to do something that may possibly change the current direction of my life. It's either going to be amazing or devastating with not much in between. Safe to say that I'm absolutely bricking it and I'm just glad I've not had a heart attack already today the speed my heart has been beating for the past 6 hours or more!
Marriage?
Joining ISIS ?
Leaving ISIS ?
Full body waxing ?
Vasectomy ?
Skydiving ?
Gender re-assignment?

Inquiring minds want to know

Re: Awesomeness

Posted: Mon Apr 25, 2016 12:57 pm
by Siao7
painless wrote:
minchy wrote:I'm about to do something that may possibly change the current direction of my life. It's either going to be amazing or devastating with not much in between. Safe to say that I'm absolutely bricking it and I'm just glad I've not had a heart attack already today the speed my heart has been beating for the past 6 hours or more!
Marriage?
Joining ISIS ?
Leaving ISIS ?
Full body waxing ?
Vasectomy ?
Skydiving ?
Gender re-assignment?

Inquiring minds want to know
I thought it would be the first one. The rest are like childs play compared!

Re: Awesomeness

Posted: Mon Apr 25, 2016 1:16 pm
by minchy
Siao7 wrote:
painless wrote:
minchy wrote:I'm about to do something that may possibly change the current direction of my life. It's either going to be amazing or devastating with not much in between. Safe to say that I'm absolutely bricking it and I'm just glad I've not had a heart attack already today the speed my heart has been beating for the past 6 hours or more!
Marriage?
Joining ISIS ?
Leaving ISIS ?
Full body waxing ?
Vasectomy ?
Skydiving ?
Gender re-assignment?

Inquiring minds want to know
Marriage and family related but I won't go into detail.
I thought it would be the first one. The rest are like childs play compared!

Re: Awesomeness

Posted: Fri May 06, 2016 7:58 pm
by Asphalt_World
Getting home from work and finding a very posh package in the postbox from Alfa Romeo. Inside is a leather and chrome USB memory stick and more excitedly, an invitation for me and my wife to spend a day at the Millbrook Proving Ground later this month to spend the day being taught how to drive the hell out of the Alfa 4C Coupe and Spider!

Result........

Re: Awesomeness

Posted: Sat May 07, 2016 1:08 pm
by RaggedMan
Asphalt_World wrote:Getting home from work and finding a very posh package in the postbox from Alfa Romeo. Inside is a leather and chrome USB memory stick and more excitedly, an invitation for me and my wife to spend a day at the Millbrook Proving Ground later this month to spend the day being taught how to drive the hell out of the Alfa 4C Coupe and Spider!

Result........
I've never had to put anyone on the ignore list here before, but I might have to after hearing this. ;)

Re: Awesomeness

Posted: Sat May 07, 2016 1:24 pm
by Asphalt_World
RaggedMan wrote:
Asphalt_World wrote:Getting home from work and finding a very posh package in the postbox from Alfa Romeo. Inside is a leather and chrome USB memory stick and more excitedly, an invitation for me and my wife to spend a day at the Millbrook Proving Ground later this month to spend the day being taught how to drive the hell out of the Alfa 4C Coupe and Spider!

Result........
I've never had to put anyone on the ignore list here before, but I might have to after hearing this. ;)
:lol:

Apparently I'm a valued customer. What they don't know is that there's not a cat in hells chance of me actually purchasing a 4C!

Should be fun though.

Re: Awesomeness

Posted: Wed Jun 08, 2016 3:52 pm
by mac_d
It's sunny. I'm walking home. Got my happy playlist on. :D

Re: Awesomeness

Posted: Wed Jun 08, 2016 11:23 pm
by minchy
mac_d wrote:It's sunny. I'm walking home. Got my happy playlist on. :D
I thought a similar thing today, then I felt even better hearing it wasn't nice weather in London! I do love being the north sometimes :]

Re: Awesomeness

Posted: Thu Jul 14, 2016 10:37 pm
by Argentum
Just sat at the back of the house, having a quiet drink, and about a dozen bats appear, chasing moths I think.

Don't know why (maybe because it's rare), bur really put a smile on my face. Dog was fascinated.

Re: Awesomeness

Posted: Fri Jul 15, 2016 1:36 pm
by painless
[quote="Argentum"]Dog was fascinated.
[/quote

Can dogs hear bats? Is this similar to u/sonic whistles?

Re: Awesomeness

Posted: Fri Jul 15, 2016 4:41 pm
by huggybear
painless wrote:
Argentum wrote:Dog was fascinated.
[/quote

Can dogs hear bats? Is this similar to u/sonic whistles?

It's too high a frequency for dogs to hear. But only just. Dolphins though, that's another story.

Re: Awesomeness

Posted: Fri Jul 15, 2016 4:55 pm
by minchy
huggybear wrote:
painless wrote:
Argentum wrote:Dog was fascinated.
[/quote

Can dogs hear bats? Is this similar to u/sonic whistles?

It's too high a frequency for dogs to hear. But only just. Dolphins though, that's another story.
Depends on the bats, there a load that live under one of the bridges near me and you can definitely hear them with human ears!

Re: Awesomeness

Posted: Fri Jul 15, 2016 5:04 pm
by moby
I have been told, do not know if it is correct, that you can hear bats if you are on your phone.
Apparently it feeds int the mic, out through the speaker etc to give a loop and the electronic filter in the phone cuts the top off every time so you get a frequency reduced sound.

It may make sense, but personally I would have thought there was a notch filter which only allowed audio through?
If you get a chance try it ad report back. :D

Re: Awesomeness

Posted: Sat Jul 16, 2016 7:26 pm
by huggybear
minchy wrote:
huggybear wrote:
painless wrote:
Argentum wrote:Dog was fascinated.
[/quote

Can dogs hear bats? Is this similar to u/sonic whistles?

It's too high a frequency for dogs to hear. But only just. Dolphins though, that's another story.
Depends on the bats, there a load that live under one of the bridges near me and you can definitely hear them with human ears!
Oh no, bats make sounds, but the echolocation sound they make to better see things is not audible because you would get too much distortion of the signal coming back from everything in the general area making noises.

As for Moby's hear it through the phone, it's at least theoretically possible, but it would depend on the mic being sensitive to such high frequencies. You could absolutely do it with a high threshold mic and a laptop running something like GarageBand where you can pitch shift the sound sample.

And now I have a project for my summer holidays...

Re: Awesomeness

Posted: Sat Jul 16, 2016 7:30 pm
by moby
huggybear wrote:
minchy wrote:
huggybear wrote:
painless wrote:
Argentum wrote:Dog was fascinated.
[/quote

Can dogs hear bats? Is this similar to u/sonic whistles?

It's too high a frequency for dogs to hear. But only just. Dolphins though, that's another story.
Depends on the bats, there a load that live under one of the bridges near me and you can definitely hear them with human ears!
Oh no, bats make sounds, but the echolocation sound they make to better see things is not audible because you would get too much distortion of the signal coming back from everything in the general area making noises.

As for Moby's hear it through the phone, it's at least theoretically possible, but it would depend on the mic being sensitive to such high frequencies. You could absolutely do it with a high threshold mic and a laptop running something like GarageBand where you can pitch shift the sound sample.

And now I have a project for my summer holidays...
If you want a help for it, my theory is that it is the heterodyne of what it considers interference being blocked (clipped) that actually produces the click on the phone

(then again, that may be a hinderence not a help :D )


Edit. Bat detector in kit form. In Maplin catalog, £30

http://www.maplin.co.uk/p/franzis-bat-d ... -kit-n38dp

Re: Awesomeness

Posted: Mon Jul 18, 2016 10:39 am
by minchy
I clicked on the link for the bat detector. Now I'm getting constant Maplin banner ads for the bat detector on the forum! :lol:

Re: Awesomeness

Posted: Mon Jul 18, 2016 10:49 am
by moby
minchy wrote:I clicked on the link for the bat detector. Now I'm getting constant Maplin banner ads for the bat detector on the forum! :lol:

You get adds on this forum? :-((
Have a read of the how to geek

Depending which browser you use, click it on blocksite.


Sorry about that. There is a way to clear your preferences on google adds, but I dont know it, I never get any, I kill em all

Re: Awesomeness

Posted: Mon Jul 18, 2016 12:38 pm
by minchy
moby wrote:
minchy wrote:I clicked on the link for the bat detector. Now I'm getting constant Maplin banner ads for the bat detector on the forum! :lol:

You get adds on this forum? :-((
Have a read of the how to geek

Depending which browser you use, click it on blocksite.


Sorry about that. There is a way to clear your preferences on google adds, but I dont know it, I never get any, I kill em all
IT's just a little banner right at the top of the page, no biggie. And it makes a change to the usual ones I get for my own business or the online accountancy software I use!

Re: Awesomeness

Posted: Tue Jul 19, 2016 12:54 pm
by SDLRob
the awesome thing today? getting to grips with my new laptop. been running on an iPad 1 & iphones for a while now & finally got fed up with it all. used my birthday to get the money for one and i'm now sat here setting it all up. hopefully it means I can spend more time on here during the race weekends (and between them). also means I can get back to taking photographs again.

Re: Awesomeness

Posted: Tue Jul 19, 2016 8:47 pm
by mac_d
Met up with a pal and went to play Pool down at our local snooker club. Guy behind the counter was amused as our memberships ran out in 2010... when the club was under other management.

Placed a fantasy football related bet on the game, went at it. No one ever got a 2 game lead. I was 5-4 ahead going into the last two games but lost. Great fun. I'm pretty poor at pool (us at snooker last time had scores into the 100s each from fouls).

Though less awesome, because of the heat today in Glasgow (hope other places too) the club was roasting. I might be out of shape, but I'm not sweating from playing pool out of shape.

Re: Awesomeness

Posted: Fri Aug 19, 2016 3:13 pm
by SDLRob
Image
Insane by Rob, on Flickr

Re: Awesomeness

Posted: Fri Aug 19, 2016 3:35 pm
by minchy
SDLRob wrote:I am insane...

https://flic.kr/p/LgxuFE
You mind me asking what you need a use a wheelchair for? Whatever it is, nice job man! Did you make it to the top?

Re: Awesomeness

Posted: Fri Aug 19, 2016 4:28 pm
by SDLRob
minchy wrote: You mind me asking what you need a use a wheelchair for? Whatever it is, nice job man! Did you make it to the top?
never made it past the ledge just above my head. did four climbs, one on the far left rope, the other three on the rope I'm on in the image. this is the first time I've done something like this and my body is aching like mad today in response. I will be doing back ASAP though and my goal is to touch the top of the climb.

I have a genetic condition that left me with deformed legs and shortened limbs. I can't walk more than a few metres unaided without problems, mostly involving lots of pain.

this was a bit of a challenge to myself, 'lets see if I can do it' kinda thing. now I know I can I wanna do it again.

Re: Awesomeness

Posted: Fri Aug 19, 2016 5:12 pm
by moby
SDLRob wrote:
minchy wrote: You mind me asking what you need a use a wheelchair for? Whatever it is, nice job man! Did you make it to the top?
never made it past the ledge just above my head. did four climbs, one on the far left rope, the other three on the rope I'm on in the image. this is the first time I've done something like this and my body is aching like mad today in response. I will be doing back ASAP though and my goal is to touch the top of the climb.

I have a genetic condition that left me with deformed legs and shortened limbs. I can't walk more than a few metres unaided without problems, mostly involving lots of pain.

this was a bit of a challenge to myself, 'lets see if I can do it' kinda thing. now I know I can I wanna do it again.
Well done, my respect as well as congrats :thumbup:

Re: Awesomeness

Posted: Fri Aug 19, 2016 5:23 pm
by RaggedMan
That is truly the definition of awesomeness!

Re: Awesomeness

Posted: Sat Aug 20, 2016 8:36 pm
by painless
https://www.youtube.com/watch?v=o6rBK0BqL2w

Perhaps it's because my musical education fizzled at the triangle and rythm sticks stage that I'm easily impressed but this kid is truly awesome

Re: Awesomeness

Posted: Sat Aug 20, 2016 10:18 pm
by minchy
painless wrote:https://www.youtube.com/watch?v=o6rBK0BqL2w

Perhaps it's because my musical education fizzled at the triangle and rythm sticks stage that I'm easily impressed but this kid is truly awesome
That's awesome because it's so damn good and also cause it shows that Beethoven is still amazing even today!

I'm sure I've heard an electric guitar version of this before, but can't remember who it was. Maybe Stevie Vai, but it was about 15 years ago so really can't remember.

Re: Awesomeness

Posted: Thu Sep 15, 2016 12:39 am
by mac_d
Finally got clearance from the powers that be (my folks and my brother really) to show my nephews some fun little science experiments. I'm a science geek, I love it from this level to the level I do professionally. I think all this stuff is really pretty cool and I'm 28, so hopefully they'll dig it to (age 6 and 3). Educational and fun is what I'm going for.

Going to show them:
1) Baking Soda Volcano
2) Non-Newtonian fluid (the old corn flour and water thing - liquid when you touch it softly, jams into something that feels solid when you put a bit of force on it). If my dad has a decent subwoofer I'll do the dance party in hell version too
3) cloud in a jar
4) hot air balloon (won't release it but hopefully get off the ground)
5) Matchbox rocket (basically a match head in some tinfoil, heat it and it pops off with a fair bit of speed. Add some fins etc for a giggle)
6) Growing crystals (takes a while but kinda cool)
7) The old Diet Coke and Mentos thing

Pretty sure I have favourite Uncle locked down by this point, but I think they'll get a kick out of these little experiments. If any of you happen to know of any easily cleanable, relatively safe science experiments that are fun and doable from the suburbs of Glasgow, let me know. My mother complaiend I wasn't doing this at my place. I pointed out I live in a tiny flat with no garden space. Plus, I don't want to clean any of this stuff up.

Re: Awesomeness

Posted: Thu Sep 15, 2016 2:08 pm
by painless
mac_d wrote:If any of you happen to know of any easily cleanable, relatively safe science experiments that are fun and doable from the suburbs of Glasgow, let me know
I've got a couple. The flaming handkerchief with water/alcohol mix. No clean up, just a warm, damp hankie! And maybe the Cartesian diver.

Ooo and the crushed can. Take a large can (like an olive oil can) with a sealable spout. Put a little water in and boil until the water has nearly all gone. Bung in the stopper and cool. Steam condenses, pressure drops and can collapses.

Re: Awesomeness

Posted: Thu Sep 15, 2016 5:10 pm
by huggybear
painless wrote:
mac_d wrote:If any of you happen to know of any easily cleanable, relatively safe science experiments that are fun and doable from the suburbs of Glasgow, let me know
I've got a couple. The flaming handkerchief with water/alcohol mix. No clean up, just a warm, damp hankie! And maybe the Cartesian diver.

Ooo and the crushed can. Take a large can (like an olive oil can) with a sealable spout. Put a little water in and boil until the water has nearly all gone. Bung in the stopper and cool. Steam condenses, pressure drops and can collapses.

Both good ones. Mac, if you do the one with alcohol, add a bit of table salt to the mix, it makes the flame easier to see. I speak from experience when I say that you can burn yourself quite easily thinking the thing is not lit because the ethanol flame is difficult to see in direct sunlight.

Also, you can do cool things with different density liquids, because they don't mix. should be able to stack alcohol, water, honey, washing up liquid, and different kinds of cooking oils into different bands without mixing.

This might be a helpful website: https://sciencebob.com/category/experiments/

Also one that's not there, but is pretty fun is to make pH indicators from red cabbage. If you boil the red cabbage in some water, the dye leaks out, and it changes colour in different pHs. Different from a standard UI scale, but it's still cool to try out.

There may be a few more, but my brain has dropped out of lab tech mode for the day.

Also, in terms of safety, most things should be fine, because gas pressure and chemical reactions are normally the ones that are potentially dangerous, and lab chemicals are relatively hard to get hold of.

Also again, if you want to do anything with circuits, pick up a BBC Micro:Bit and the breakout board for it. They're amazing bits of kit, and they can learn the basics of coding (using CodeBlocks) as well as some circuit stuff.

Re: Awesomeness

Posted: Thu Sep 15, 2016 6:34 pm
by moby
mac_d wrote:Finally got clearance from the powers that be (my folks and my brother really) to show my nephews some fun little science experiments. I'm a science geek, I love it from this level to the level I do professionally. I think all this stuff is really pretty cool and I'm 28, so hopefully they'll dig it to (age 6 and 3). Educational and fun is what I'm going for.

Going to show them:
1) Baking Soda Volcano
2) Non-Newtonian fluid (the old corn flour and water thing - liquid when you touch it softly, jams into something that feels solid when you put a bit of force on it). If my dad has a decent subwoofer I'll do the dance party in hell version too
3) cloud in a jar
4) hot air balloon (won't release it but hopefully get off the ground)
5) Matchbox rocket (basically a match head in some tinfoil, heat it and it pops off with a fair bit of speed. Add some fins etc for a giggle)
6) Growing crystals (takes a while but kinda cool)
7) The old Diet Coke and Mentos thing

Pretty sure I have favourite Uncle locked down by this point, but I think they'll get a kick out of these little experiments. If any of you happen to know of any easily cleanable, relatively safe science experiments that are fun and doable from the suburbs of Glasgow, let me know. My mother complaiend I wasn't doing this at my place. I pointed out I live in a tiny flat with no garden space. Plus, I don't want to clean any of this stuff up.


I used to love doing things like that under the pretense of showing my brother :D

Some however went far beyond what should be shown in schools.

Re: Awesomeness

Posted: Fri Sep 16, 2016 4:11 am
by mac_d
moby wrote:
I used to love doing things like that under the pretense of showing my brother :D

Some however went far beyond what should be shown in schools.
I remember when I was probably 7-9 years old my brother nailed a sheet of polythene to the pack of the shed and set it on fire. When the plastic melts and drops off it makes a cool noise. I also remember him showing me you could buy a couple of boxes of matches (not safety matches), cut the heads off and stick them in a tennis ball with some gravel. You throw the ball, they all go up and it's pretty vigorous. I've subsequently seen folk do it with thousands of matches on youtube. My gran also used to let us play with WD40 and matches. Thinking back, I'm kinda amazed I survived childhood.

I must say, since the diet coke and mentos thing became a viral video thing, I've really wanted to see it in person. Looking forward to it. Think my nephews will like that a lot, and will love the tinfoil rockets (https://www.youtube.com/watch?v=WFyKgmnCF-8)

I actually did some of the STEM outreach stuff from my Uni. From primary school age up to about 13/14. We did some pretty cool experiments, though some I felt were really rather crappy. The workshops with the really young kids were probably the most interesting. We had balloons to show states of matter, used charcoal to take the colour out of cola and irn bru and stuff like that. Plus, whenever we did it we'd finish at like 3:30pm at the latest then all just go home.

One thing I always found funny - some of the chemicals I got to use in my Advanced Higher Chemistry in 2005/06 school year (I think thats about A-Level for those in elsewhere in the UK - usually final year of school before Uni if that's the route you were taking) we'd have to fill out a lot of Health and Safety stuff to use at Uni. In a decade of so total at Uni I've never used a naked flame (though a few people in the labs did) but at school we used them all the time. I remember using 22 mol/litre Sulphuric Acid that someone dropped and it was starting to dissolve the concrete floor. I wonder if they still let silly 17/18 year olds have access to that stuff or if Health and Safety have stopped it (and that would not be a case of H&S gone mad imo).

Re: Awesomeness

Posted: Fri Sep 16, 2016 1:30 pm
by moby
mac_d wrote:
moby wrote:
I used to love doing things like that under the pretense of showing my brother :D

Some however went far beyond what should be shown in schools.
I remember when I was probably 7-9 years old my brother nailed a sheet of polythene to the pack of the shed and set it on fire. When the plastic melts and drops off it makes a cool noise. I also remember him showing me you could buy a couple of boxes of matches (not safety matches), cut the heads off and stick them in a tennis ball with some gravel. You throw the ball, they all go up and it's pretty vigorous. I've subsequently seen folk do it with thousands of matches on youtube. My gran also used to let us play with WD40 and matches. Thinking back, I'm kinda amazed I survived childhood.

I must say, since the diet coke and mentos thing became a viral video thing, I've really wanted to see it in person. Looking forward to it. Think my nephews will like that a lot, and will love the tinfoil rockets (https://www.youtube.com/watch?v=WFyKgmnCF-8)

I actually did some of the STEM outreach stuff from my Uni. From primary school age up to about 13/14. We did some pretty cool experiments, though some I felt were really rather crappy. The workshops with the really young kids were probably the most interesting. We had balloons to show states of matter, used charcoal to take the colour out of cola and irn bru and stuff like that. Plus, whenever we did it we'd finish at like 3:30pm at the latest then all just go home.

One thing I always found funny - some of the chemicals I got to use in my Advanced Higher Chemistry in 2005/06 school year (I think thats about A-Level for those in elsewhere in the UK - usually final year of school before Uni if that's the route you were taking) we'd have to fill out a lot of Health and Safety stuff to use at Uni. In a decade of so total at Uni I've never used a naked flame (though a few people in the labs did) but at school we used them all the time. I remember using 22 mol/litre Sulphuric Acid that someone dropped and it was starting to dissolve the concrete floor. I wonder if they still let silly 17/18 year olds have access to that stuff or if Health and Safety have stopped it (and that would not be a case of H&S gone mad imo).

Not sure I should put it here, as I think the smoke woud be toxic if breathes, (although I had many lung fulls) but crush a couple of pingpong balls and put them in a whole one via a slit, push a straw into the slit and cover with foil. place it o a tealight candle, and "retire".



I know so many good ones, but am fearfull to post them "incase" :twisted:

edit

Look up potato cannon on youtube.