LAB@HOME LATEST COMPLETED PROJECT

Jacob's Ladder - A Jacob’s Ladder is the type of high voltage “climbing arc” display seen in many old (and usually bad) Sci-Fi movies. Jacob’s Ladder come in all shapes, styles, and sizes.

NOTICE

On the 19th of September 2007, HELiXATED.COM was taken offline due to... I should say, disciplinary issues concerning the owner. Almost exactly a month after the incident, I have decided to revive this blog in its all-new glory. Relevant changes had to be made.

An account registration system has been implemented. While public posts will still be made, more private and sensitive issues require an account to view. Registration is simple. Just refer to the... stuffs, on the left. Upon registering, I'll have to approve your account based first. I'll only accept people who I know, friends of people who I know, and friends of friends of people who I know... and that's pretty much everyone. Eh.

Oh and one more thing. This is a disclaimer that everything and anything mentioned on this blog COMPLETELY does not reflect the opinion of the owner. All characters and events described in this blog are fictional. The ideas and characters are the figments of my imagination, and any resemblance to real life people, either living or dead, is purely coincidental. Don't believe in anything.

Unless, of course, I tell you to do so.

Cheers!


28 Jun 07
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LOLOLOLOLOL

LOL.

Y’all gotta try this!


This rating was determined based on the presence of the following words:

  • shit (3x)
  • suck (2x)
  • jap (1x)

 

I swear it’s like that because of the ongoing term exams! And since the rating is based on the CURRENT snapshot of the webpage, boo.

Then I decided to try for others!

I thought mine was bad, then Kok had me LOLLERSKATING.

For Kok,

 

This rating was determined based on the presence of the following words:

  • shit (10x)
  • pain (1x)

 

OWN’D. HEHE.

In other quizzes,

46%How Addicted to Blogging Are You?

And also,

$5165.00The Cadaver Calculator - Find out how much your body is worth

Damn cheapskate.

Boohoo.

HELiX | 4:02 pm

27 Jun 07
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Lab@Home Update: Tesla Coil, Once More

Ok. The Tesla Coil.

Had a program to do all the math for me. No, it isn’t Kok…

The calculation is based on the assumption that my coil is very inefficient, ‘cos my technical skills is…

 

TeslaMap Coil Summary

———- Power Supply ———-
NST V Out     15 kV
NST I Out       30 mA
NST Input V    240 V
NST Input F    50 Hz
NST VA         450.0
NST Watts     462.7 W
NST Impedance    500 Kohms
Max Arc Length    36.6 in
NST PFC Cap    24.9 uF

———- Primary Capacitor ———-
Your Cap       9.4 nF
Resonate Cap    6.4 nF
LTR Static Cap    8.9 nF
LTR Sync Cap    12.1 nF

———- Secondary Coil ———-
Single build magnet wire
24 AWG
Wire Length    225.3 m
Wire Weight    0.91 lbs
Wire Resistance    19.0 ohms
Coil Height    51 cm
Coil Diameter    7.62 cm
Coil H/W Ratio    6.7 : 1
Coil Turns      941.8
Inductance     8.38 mH
Capacitance    7.23 pF

———- Top Load ———-
Overall Diameter        41 cm
Ring Diameter             10 cm
Top Load Adjustment    80 %
Top Load Capacitance    16.06 pF

———- Top Load + Secondary ———-
Resonate F    360.20 kHz

———- Primary ———-
Wire Diameter    0.6 cm
Wire Spacing    0.6 cm
Hole Diameter    15 cm
Coil Angle     0 degrees
Coil Adjust      90 %

Needed primary inductance with:
Your Cap        13.05 uH
Resonate Cap    19.27 uH
LTR Static Cap    13.76 uH
LTR Sync Cap    10.14 uH

Ok, after building the cap bank a few days ago, I had another shot with the full setup.

And on! Till now, I still can’t emphasize on how deafening the sound is… I seriously need to get ear muffs.

Zoomed in…

No sparks at the discharge terminal, but at the primary coil instead!

After asking GGY for some advice… As you can see from the above picture, the arcing is actually at the wire. Yes, the 20000 Volts just jumped right through the insulation of the wire. I thought it was rather thick actually… but no, I should have gotten HV Wires (High Voltage) but that’s pretty expensive.

Here’s the original, with no sparking.

GGY recommends that I can try threading the wires through fish tank tubings, sort of adding extra insulation. And that’s cheap too.

So… I just sent my Dad on a Fish Tank Shopping trip.

HELiX | 8:00 pm

26 Jun 07
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This morning I woke up, feeling terrible. It just felt… wrong.

I struggled my way downstairs, into the kitchen, and dropped immediately on my mum’s sofa.

If I were to just stay there like that, I’ll end up sleeping again, so I made my way to a chair, rested my head on the table, and felt my head.

Oh shit.

A fever dammit.

For the next half an hour I clumsily prepared myself for school. I wasn’t in any shape for school, but I have 2 freakin major papers today. Back in BP it would be fine as they’ll just carry your grade over from CA, but I’m not too sure what they’ll do in AC. And besides, I never like the feeling of taking an exam paper when everyone is enjoying their post-exams stuffages.

In school, I felt equally ill, so I’ll sit down whenever I can. I wanted to just… drop flat on the floor any instant. Yes, that bad.

Incredibly, the air-con of the badminton hall was able to subdue the fever, I made it through both papers.

Skipped lunch, forced myself to eat something just now but my appetite isn’t there.

And right now, as I sit in front of the computer, half of my mind wondering about tomorrow’s 3 hour chinese paper. I’m sweating. And my head hurts. I think I’ll be going to sleep… for once, I’m giving up the computer. Cool.

Being sick is just so horrible.

HELiX | 7:17 pm

25 Jun 07
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Term Exams sucks. For real.

I can’t believe how much I screwed up today.

Term exams suck. No, I don’t mean it the way every other student say it, but y’know, this time it seriously sucks.

GP, I just couldn’t rephrase everything in my own words well. My vocabulary bank just went blank.

Chemistry, I… I don’t know. It just didn’t feel right. I studied this the most, and I’m not one bit confident at all.

Whatever the case, perhaps the horribleness of the situation can be summarised by that fact that I didn’t finish either paper.

So, I’m feeling so terrible, then I looked at the exam time table… Right. Tomorrow… Econs… Shit. Nevermind, everyone will fail with me. Maths… I’ll go in with whatever knowledge I had for O Levels.

And then-then-then-then-theeeeen I saw the following day, Wednesday.

Chinese… [addressed politely to the MT department] YOU WANT ME TO PUT THROUGH 3 STRAIGHT HOURS OF CHINESE??!?!?!?! WHAT ARE YOU, A CRAZY PHUCK?

It’s like OMFG lah.

8.15am to 11.15am, will perhaps be the most pointless time of my life. I mean, compo and then compre, together?

30 mins into any Chinese paper and I’m bored. An hour, my backside is itchy. 1h 30 mins, I’ll rejoice when the teacher stops everyone from writing any further, because I’ve done just that an hour and twenty minutes ago.

Ok, exaggerated, but it’s the pointlessness of Chinese in my life.

3 HOURS?!

HELiX | 8:32 pm

24 Jun 07
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Drawing with HTML

Using pure HTML coding (tables and background colours), this guy draws.

If you know a decent amount of HTML, you’ll realise how sickeningly amazing this is. Or, well, tedious.

HELiX | 8:13 pm

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