Is my chestnut tree trying to flower?

We are a community of professionals and hobbyists within the field of arboriculture. This is a place just as much for shop talk as for questions regarding health and upkeep of trees.
Any clue what this is or what causes it?
Submit photos, location, and any text info that you have... And we ID the plant
Growing oyster mushrooms, is this the result of too much co2 in the fruiting container? [gourmet]
r/MushroomGrowers is a supportive community of amateurs and professionals from around the world collaborating on mushroom cultivation.
Growing oyster mushrooms, is this what they're supposed to look like? [gourmet]
r/MushroomGrowers is a supportive community of amateurs and professionals from around the world collaborating on mushroom cultivation.
Advice for mountain bike conversion?
Careful, power is addictive
Advice for mountain bike conversion?
The place for all your eBike building/modding needs! Talk about parts, builds, questions, etc.
Found this Necco Sweets jar lid in a 1930s dump in Worcester MA
From discovery to identification, here is anything related to the hobby of collecting antique bottles or glass. We welcome our users to post photos of their finds, ask questions and share stories about bottle digging. Whether your collection was found in a traditional dump, on the surface, under water, purchased, or passed down through generations- we want to see them!
What to get for Klipper+Octoprint?
A place to come together and discuss the Creality Ender 5, Pro and Plus 3D printers
Is it likely this is radon?
Brushed against a car at a junkyard and got shocked, it fluctuated between 130v and 150v dc for about a minute. Why?
Noticed the buyer messaged me and asked to ship to a different address when I was about to send it out. I don't see an option to cancel, so im unsure of what I should do?
The unofficial eBay subreddit. Help for buyers and sellers. Please read the rules - https://old.reddit.com/r/Ebay/about/rules/
Does anyone know what this is called? Only thing I could find about it was it might have been dropped with atomic bombs to measure pressure.
Is this an arrowhead? Found on the shore of the west thumb of yellowstone lake.
A place to discuss your arrowhead and other artifact finds.
Small rock with what I believe is a fossil found on satellite peak in island park, Idaho

Found a fossil? Submit a post here containing a few images, and we'll figure out what it is!
What is this? Found in Massachusetts
for the love of fungi :: hunting, foraging, cultivation, images( mycoporn ), research, questions & general discussion
Is this a species of cordyceps on a spider?

for the love of fungi :: hunting, foraging, cultivation, images( mycoporn ), research, questions & general discussion
Brand new pinecil v2 does this when powering on, even after updating and factory reset. Does anyone know what is wrong with it?
Official hub on Reddit for news and discussion on PINE64 projects and devices.
Is this weller soldering station worth buying? I’ve been looking to upgrade and it seems like a good deal with how much they cost new.
A subreddit for practical questions about component-level electronic circuits: design, repair, component buying, test gear and tools.
Does anyone know what type of vacuum tube the one on the left is? I think it might be an x-ray tube but I’m not entirely sure and this is the only picture I have.

A subreddit for practical questions about component-level electronic circuits: design, repair, component buying, test gear and tools.
Anyone know what this weird “bubbled” patch is on the first layer of my print? It usually fixes itself within 2-3 layers. Printing with hatchbox pla and 50°bed/200°nozzle

/r/3DPrinting is a place where makers of all skill levels and walks of life can learn about and discuss 3D printing and development of 3D printed parts and devices.
Any way to fix this or should I just try to find a replacement?

A subreddit for practical questions about component-level electronic circuits: design, repair, component buying, test gear and tools.
Is there a way to fix or replace this capacitor(?) in this Zenith 8G005YT?
Subreddit dedicated to vintage tube and antique crystal set radios. Please post pictures of your collection, and help out fellow redditors who need help in restoring them.
Does anyone know what use I could have for this vacuum tube?

A subreddit for practical questions about component-level electronic circuits: design, repair, component buying, test gear and tools.
Found a 1920s(?) dump in the woods in Massachusetts and managed to get these intact pieces out

Welcome to r/metaldetecting, a place to discuss all things metal detecting! Please check out the rules before posting. If you are looking for advice on a detector or gear, take a look at the stickied post. As a member of our sub you are welcome to use our sub's code "REDDITMD" at checkout on SeriousDetecting.com OR Kellycodetectors.com. (US) If you purchase from Radioworld.ca try out the code (REDDITRWMD) at checkout. (CA) Thanks for being a part of our community!
Used a board from an old crt for desoldering practice, does anyone know what some of these are and if they’re worth keeping for future projects?
A subreddit for practical questions about component-level electronic circuits: design, repair, component buying, test gear and tools.