Mastodawn

ok, so i have been doing some thinking.

A couple people on here were bothered that my ebike doesn't have a rear brake (too bad!), but it did make me think about how i would do a rear brake.

Mechanical isnt a good option because of how the bike is designed and the motor controller doesn't allow for regenerative braking.

Now, a friend of mine has a big CNC lathe that has a heating element from an electric stove for resistive braking. I didn't realize that was a thing until I saw the stove coil sitting there in a box behind the lathe.

It got me thinking, could resistive braking be used to slow an ebike?

I decided to try a little test using a scooter motor, a button, and a high-wattage resistor.

It works! At least it does at this scale. I have no idea what kind of hardware it would take to slow down an ebike with a person riding on it, but it was cool to see the concept in action.

jbaggs 1d ago

NetBlocks 1d ago

⚠️ Confirmed: Live network data show a major disruption to internet connectivity in #Iran, corroborating widespread user reports of issues reaching the global internet; the incident comes just weeks after authorities shut down telecoms during the war with Israel 📉

jbaggs 1d ago

Annalee Newitz 🍜1d ago

Hey San Francisco Bay friends! What are you doing next month, on a lazy Sunday afternoon, 8/3? Join me for the launch of my new book, Automatic Noodle, hosted by Noe Valley Books! I'll be in conversation with AI researcher @alex. It's FREE! RSVP now! https://noevalleybooks.com/event/2025-08-03/automatic-noodle-event-annalee-newitz #sfba #sf #books

'Automatic Noodle' Event With Annalee Newitz

Noe Valley Books

Captions please

The world’s population is suddenly replaced by vat-grown clones of you.

What happens next?

jbaggs 1d ago

Kevin Rothrock 1d ago

Asset management company BlackRock Inc. halts search for institutional investors to back multibillion-dollar Ukraine recovery fund due to a lack of interest amid increased uncertainty over Ukraine’s future in wake of Trump's reelection, reports Bloomberg. https://www.bloomberg.com/news/articles/2025-07-05/blackrock-halted-ukraine-fund-talks-after-trump-s-election-win

jbaggs 1d ago

Show thread

Kevin Beaumont 1d ago

2 and a bit days in and Ingram Micro still haven’t admitted what is happening, instead saying “Maintenance”

They’re both a large MSP and MSSP who sell anti-ransomware services.

#threatintel #ransomware

jbaggs 1d ago

Ada Palmer 1d ago

Ireland shuts last coal plant, becomes Europe’s 15th coal-free nation
Following wind’s rise to 37% of generation last year, the 915MW Moneypoint plant has just been switched off, ending four decades of Irish coal-fired electricity. The station will serve only as an emergency backup until 2029, underscoring how rapid renewables growth and grid reforms are wiping coal from one of Europe’s last hold-outs. PV Magazine https://www.pv-magazine.com/2025/06/20/ireland-coal-free-ends-coal-power-generation-moneypoint/?ref=fixthenews.com
#ShareGoodNewsToo

Ireland shuts last coal plant, becomes 15th coal-free country in Europe

Moneypoint in County Clare, Ireland, joins the ranks of other European nations exiting coal by shutting off power generation at its sole remaining coal plant. Industry observers say Ireland’s increased renewable energy generation in recent years, particularly in wind, has contributed to this milestone. Moneypoint now functions as a backup oil burner under emergency instruction, but it is no longer active in the wholesale electricity market.

pv magazine International

jbaggs 1d ago

Mongabay 2d ago

As oil companies push for drilling on the Amazon coast, an underwater war silences the ocean’s most vocal creatures.

Petrobras has been conducting surveys since 2013 using seismic airgun blasts that can destabilize marine ecosystems by interrupting essential communication in the marine food chain.

https://news.mongabay.com/2025/07/seismic-noise-from-oil-companies-threatens-amazon-river-mouth-marine-life/

#News #Conservation #Environment #Amazon #Wildlife #OilIndustry