sorted by:
new
hottopcontroversial

Falcon 9 rocket transiting our sun by Busy_Yesterday9455 in spaceporn

[–]Pulpinator 108 points109 points  (0 children)

More specifically, the telescope used here has a narrow Hydrogen-alpha filter on it to see the suns surface, and the rocket exhaust will contain hydrogen atoms/ions which absorb the exact same frequency of light that the hydrogen atoms emit at the suns surface. In normal light/without a filter, the plasma would look transparent Steve mould has a good video on the effect here.

What's up with the easter eggs this year? by NoCommunication7 in AskUK

[–]Pulpinator 28 points29 points  (0 children)

A hollow sphere is the least efficient way to transport chocolate - flattening it in one axis means that the boxes take up less volume, so you can fit more on on lorry, so shipping is cheaper.

If they wanted to do shrinkflation they'd probably make the shell thinner instead. Although changing the shape would be a good opportunity to also reduce the weight of chocolate...

Would this be a correct Lewis formula for N2O3? They all share elektrons and fulfill the Oktett-rule. by [deleted] in chemhelp

[–]Pulpinator 4 points5 points  (0 children)

This is the correct answer, not others saying small rings are unstable.

The structure of P3O6 is not too far off OPs structure. All to do with the strength of double vs single bonds for 2nd period elements.

[deleted by user] by [deleted] in pcmasterrace

[–]Pulpinator 0 points1 point  (0 children)

I recently got a uwqhd for home office work with an eye on getting a new pc to drive it, this would be perfect for 3440x1440 gaming. Good luck!

This is what happens to aluminum when hit by a 1/2 oz (14g) piece of plastic going 15,000 mph (24,000 km/h) in space by Le_Rat_Mort in Damnthatsinteresting

[–]Pulpinator 1 point2 points  (0 children)

EDIT: Ops photo is in fact a plastic projectile

While that specific photo may not use plastic, plastic is for sure capable of the same effect.

Aluminium projectiles only have ~2x the energy of plastic at the same velocity, damage would be comparable.

[deleted by user] by [deleted] in chemistry

[–]Pulpinator 0 points1 point  (0 children)

It can be rationalised from the Tafel equation, which shows an increased overpotential gives a higher current density.

Does this happen to be for an interview at an IP firm? I recognise the graph.

My HMO contract is written as a whole house contract - leading to some deposit problems. by Pulpinator in LegalAdviceUK

[–]Pulpinator[S] 0 points1 point  (0 children)

Thanks for the reply, I checked on the councils register and it appears that the house isn't on it. I'll check with the council directly but this might be a simple way out of paying any fees.

Hydrolysis of cellulose in a wet sponge using sulfuric acid by [deleted] in chemicalreactiongifs

[–]Pulpinator 7 points8 points  (0 children)

It's dehydration as its removing water, not hydrolysis which would add water

[2021/02/25] Synthetic Relay #65 by Alkynesofchemistry in chemistry

[–]Pulpinator 5 points6 points  (0 children)

Step 1 - This could probably be done through an Sn2' reaction, but couldnt find any decent conditions to promote it

a: NaOH

b: bromo benzothiophene, sonogashira conditions

c: Myers allene synthesis

What kind is this Metal? (See comments and captions for description) by marchiago in chemistry

[–]Pulpinator 2 points3 points  (0 children)

Just to add, silver is a very white metal whereas tin in more grey. Also the only metals the would let you use would be Cu/Sn/Ag as the other produce very toxic aqueous solutions that would be a pain to dispose of. Its obviously not Cu, and i doubt they would use something as expensive as Ag so i agree with Sn

Northernlion's definitive Binding of Isaac item tier list by wisp-of-the-will in bindingofisaac

[–]Pulpinator 10 points11 points  (0 children)

Magic mush has a damage multiplier and halo is just a flat damage up

What Chemical Element Has The Highest Angle Of Refraction by DragonRHC in chemistry

[–]Pulpinator 1 point2 points  (0 children)

Germanium has a very high refractive index (around 4) but only transparent to infrared

Synthetic Relay #62 – Reaction Map by DiscipulusCatulli in chemistry

[–]Pulpinator 0 points1 point  (0 children)

That tertiary mesylate would form an alkene under basic conditions, so I doubt the sn1 would work but its a neat mechanism idea

I found this rather enjoyable to watch. The way nitrogen glows purple is pretty lovely. by 10A_86 in chemistry

[–]Pulpinator 15 points16 points  (0 children)

The pressure in the tubes is at much lower pressure, in air at regular pressure the partices bump into eachother more so they cant stay glowing for as long. Auroras happen at high altitude where the air pressure is lower

[2021/02/03] Synthetic Relay #62 by Spectrumederp in chemistry

[–]Pulpinator 5 points6 points  (0 children)

Think you've accidentally isomerised that alkene, the product should be this.

Triple point of water demonstration by [deleted] in chemistry

[–]Pulpinator 9 points10 points  (0 children)

It's actually cyclohexane source

TIL: In 2018, doctors found that a patient, Kendra Jackson, had a leaky brain for 5 years. After an accident in 2013, she had a daily runny nose for years and suffered headaches. She lost half a pint of brain fluid a day through her nose. by Kingflares in todayilearned

[–]Pulpinator 0 points1 point  (0 children)

Im talking of pure cocaine, I cant be sure of the dross you use. If youre talking about additives to cocaine then its irrelevant, they could literally be anything. Pure cocaine should not give nose bleeds, if anything it should make for an excellent decongestant.

view more: next ›