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Ask HN: What kind of whiteboard does not use dry erase markers?

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Re: Ask HN: What kind of whiteboard does not use dry erase markers?

#61

Post by dreamcompiler »

swe02 wrote: post #58
dreamcompiler wrote: post #33

Earlier quoted context omitted.

No. You're thinking of ethyl alcohol. If you ingest isopropyl alcohol you're gonna have a bad day. Oh and make sure the label on the ethyl alcohol does not contain the word "DENATURED." That's code for "tastes like shit and makes you sick."

Isopropanol is relatively safe to drink in small amounts (single digit mL). It's only about 2x stronger than ethanol, and your liver metabolizes it to acetone, which is safe. Denatured alcohol contains methanol, which is way more dangerous since you metabolise it to formaldehyde. Source: I unknowingly got drunk on IPA fumes before work one time and wrote some really bad code

Methanol is indeed quite toxic but it is not the only denaturant. There are many others [0]. When methanol is used as a denaturant, special labeling is required [1]. Most of the denatured ethyl alcohol I've seen in pharmacies in recent years has not contained methanol but merely bittering agents, because methanol is so dangerous.

[0] https://www.govinfo.gov/content/pkg/CFR-2003-title27-vol1/xm...

[1] https://www.federalregister.gov/d/2016-20712/p-284

Re: Ask HN: What kind of whiteboard does not use dry erase markers?

#63

Post by creer »

seoulbigchris wrote: post #51

A long time ago, a colleague and I visited a supplier in another state. While we were waiting alone in a conference room, we noticed an unusual looking note taking device at the front of the room. It was a very large easel that looked like a white board, with a tray of markers and an eraser. But it was clearly electronic because it had stuff attached to the top and bottom, some buttons, and was plugged in. We walked…

Techies and magic - hours of entertainment. Like cats and string :-)

Re: Ask HN: What kind of whiteboard does not use dry erase markers?

#64

Post by woleium »

snailmailman wrote: post #43

Different purpose than a whiteboard, because its much smaller and not really for sharing with a group. But I've used a Rocketbook 'reusable notebook' off and on for a while for any random notes at my desk. I used to just fill up a whiteboard by my desk with random notes instead of wasting paper, but now I scribble things in the Rocketbook instead. You write in it with an erasable pen, and can clean the pages off with…

there’s the one you can microwave too, the rocketbook wave iirc?

Re: Ask HN: What kind of whiteboard does not use dry erase markers?

#65

Post by creer »

MathMonkeyMan wrote: post #22

In a previous apartment, I painted a wall with several coats of blackboard (chalkboard) paint and then used fancy chalk on it, and a chalkboard eraser. Worked pretty well. The landlord even let me keep it up when I moved out, because the next tenants liked it.

I'm of the generation that had student labs (with eye-wateringly expensive computers) full of chalk dust. Chalk dust everywhere. I still have chalk dust trauma I guess and even with better housekeeping habits I'd think twice about it. Doodling opportunity so very tempting though.

Re: Ask HN: What kind of whiteboard does not use dry erase markers?

#66

Post by snailmailman »

woleium wrote: post #64
snailmailman wrote: post #43

Different purpose than a whiteboard, because its much smaller and not really for sharing with a group. But I've used a Rocketbook 'reusable notebook' off and on for a while for any random notes at my desk. I used to just fill up a whiteboard by my desk with random notes instead of wasting paper, but now I scribble things in the Rocketbook instead. You write in it with an erasable pen, and can clean the pages off with…

there’s the one you can microwave too, the rocketbook wave iirc?

It’s a neat concept, but I think the microwaveable ones have a shorter longevity. They say it can only be microwaved around 5 times. I suspect they just work because when heated, the erasable ink becomes invisible.

On the normal pocketbooks, the ink actually washes off with just a bit of water. It’s very similar to a whiteboard in that regard. I know I’ve cleaned out my notebook more than five times, it’s still basically good as new. Except one page where I accidentally used a normal non-erasable pen.

Re: Ask HN: What kind of whiteboard does not use dry erase markers?

#67

Post by rubatuga »

wrp wrote: post #57
seoulbigchris wrote: post #51

A long time ago, a colleague and I visited a supplier in another state. While we were waiting alone in a conference room, we noticed an unusual looking note taking device at the front of the room. It was a very large easel that looked like a white board, with a tray of markers and an eraser. But it was clearly electronic because it had stuff attached to the top and bottom, some buttons, and was plugged in. We walked…

In the 1990s, I went to a lab in Tokyo for a presentation, and they had me using a freestanding whiteboard. When the board got full, I grabbed the eraser but a few in the audience started going "wait! wait". I thought they needed more time to copy the writing, but then a guy came up from the audience and pressed a button at the side of the board. The writing surface scrolled off to the side and a printout emerged fro…

The tactile experience sounds amazinf

Re: Ask HN: What kind of whiteboard does not use dry erase markers?

#69

Post by dlcarrier »

brudgers wrote: post #10
firefax wrote: post #9

Slightly off topic, but if you ever write on a whiteboard with a sharpie, you can write over the text with an erasable marker and then wipe it away.

If you want to remove Sharpie, use IPA...isopropyl alcohol...India pale ale remains useless.

I use hand sanitizer, so an alcoholic beverage might work, although it's significantly diluted.
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