Beta
×

Welcome to the Slashdot Beta site -- learn more here. Use the link in the footer or click here to return to the Classic version of Slashdot.

Thank you!

Before you choose to head back to the Classic look of the site, we'd appreciate it if you share your thoughts on the Beta; your feedback is what drives our ongoing development.

Beta is different and we value you taking the time to try it out. Please take a look at the changes we've made in Beta and  learn more about it. Thanks for reading, and for making the site better!

Comments

top

Hidden Obstacles For Delivery Drones

ebonum Weight (155 comments)

"Wind is a particular hazard, because drones weigh so little compared with regular planes"

I'm not so sure about this one. A 747 in a 20 mph cross wind does 20 mph sideways. A drone in a 20 mph cross wind does 20 mph sideways.

When there is a gust (or any change in wind speed), there would be a difference. An object with a lot of mass will react more slowly to the same force. That said, once a 747 starts blowing sideways in the wind, making a correction is going to take more time and a larger force that it would for a light drone. In a big plane you do a lot more planning ahead for good reason. There are more "well, it depends on.." Even when mass is equal, a plane with a small tail (vertical stabilizer) close to the center of mass is going to react very differently than a plane with a large vertical stabilizer far from the center of mass. (Think lever arm/torque) In one you need a lot of skill to keep it from ground looping when landing in gusty cross winds.

11 hours ago
top

Post-Microsoft Nokia Offering Mapping Services To Samsung

ebonum Will download (67 comments)

Google maps doesn't work offline. I know you can download and save maps. I downloaded sections two months ago. They where about 11 to 13 MB each. When I needed it, I pulled out my phone. GPS worked and it took me to my location on Google Map. But there was one problem. Only the major roads had names. All the small roads were missing names. To get that part of the map you need to connect to wi-fi or a cellular network - which wasn't an option. Caching a section of a map should mean just that - the map and all the important stuff, like road names, get cached. Perhaps at this point all the smart people have moved on an left Google leaving only the marketing and business people. Google's absolute insistence that you should not be allowed to do anything without being connected is infuriating. I assume Google can't stand the fact that there might be 10 minutes when they are not actively tracking one of their users.
To make things worse, when you have no signal and you need maps, you will find Google has deleted all your cached maps older than 30 days, so you are shit out of luck. Will someone inform Google that in most parts of the country it takes 3 years to build or change a road. Not 30 days. An old map is better than nothing. Actually, 99.99% of the time it is just fine.

I previously used Nokia Maps. I only use the map. No directions or other crap. As a simple map, it was an excellent product. I don't need or want anything else other than a map with correct, up to date roads and road names. I somehow passed the 3rd grade, so I have the intelligence to figure out directions on my own.

2 days ago
top

850 Billion NSA Surveillance Records Searchable By Domestic Law Enforcement

ebonum admission of guilt? (207 comments)

The NSA is supposed to only collect information on foreigners. Right? So how could their DB be of any use to domestic law enforcement? Or perhaps I'm a little naive.

about a week ago
top

If Java Wasn't Cool 10 Years Ago, What About Now?

ebonum Re:Just don't try to write an OS in Java (508 comments)

I'm partly in agreement with you. If someone puts something on their resume, if they say: "I know C", then I consider C questions fair game. If they can't answer your very simple question about C ( It is a good C Language lead-off question. I will use it in the future. ), I might get the impression that the person was being deliberately deceptive when they wrote up their resume. The most likely explanations are: Either they did use C and they are an idiot OR they are pumping up their resume with bs.

That said, eliminating someone on one question is a bit harsh. People become nervous in interviews. Anyone can have a brain freeze for 20 seconds. I would want to see some form of pattern before turning someone down.

about a week ago
top

Heartbleed To Blame For Community Health Systems Breach

ebonum Access restrictions (89 comments)

How does getting onto the VPN equate to accessing the secret stuff? Isn't there another layer of security?

Whatever punishment these guys ( the sys admins ) get, it won't be enough. At some point it would be nice to see people who screw up suffer the consequences.

I admin a few machines (annoying, but required). Heartbleed got so much press, I thought everyone patched all their systems within days. I did.

about two weeks ago
top

FBI Studied How Much Drones Impact Your Privacy -- Then Marked It Secret

ebonum Key term: "Your Privacy" (139 comments)

This is not an issue. It is protecting their privacy that matters.

about a month ago
top

Facebook's Emotion Experiment: Too Far, Or Social Network Norm?

ebonum Too far? (219 comments)

What about what advertisers do every day?
Our government (for us Americans) runs campaigns to alter opinions in other countries.
I'd like to everyone in the business of "caus[ing] changes in psychological status" get "require informed consent" first.
Beer companies anyone?

about 2 months ago
top

California Legalizes Bitcoin

ebonum "other than U.S. dollars" (162 comments)

"Section 107 of California's Corporations Code, which prohibited companies or individuals from issuing money other than U.S. dollars"

So issuing US dollars in California is fine? I thought issuing US dollars was called counterfeiting.

Time to see if the the big color laser printer at work is up to the task!

about 2 months ago
top

Behind the Great Firewall: What It's Really Like To Log On From China

ebonum Re:Much adu about nothing (90 comments)

Yes. The blocking changes all the time, and it changes by location. Sites that work at the office might not work at home. Go to the areas that are closer to Xinjiang (the western parts with more Muslims), and it becomes very difficult to get over the GFW. PPTP works nearly 100% of the time. OpenVPN has more issues. It might work for 30 minutes then cut off, then work fine for a few days, then go off for a week.

about 3 months ago
top

Behind the Great Firewall: What It's Really Like To Log On From China

ebonum Much adu about nothing (90 comments)

I live in China. Everyone I know hops the GFW with ease. It is a non-issue on laptops and cell phones.
These guys have a storefront in Shanghai:
http://vpninja.net/
You go to the store, you pay in Chinese currency and they give you a log in. It is fast and reliable.
Lots of people I know use Astrill. (astrill.com)
Of course anyone who is actually worried about security will set up their own server abroad and use putty or OpenVPN to access YouTube.

about 3 months ago
top

US May Prevent Chinese Hackers From Attending Def Con, Black Hat

ebonum better idea (193 comments)

Bar members of the Chinese military from attending. Even that is purely symbolic.
Someone should tell Obama that in American we don't bar people based on race or nationality alone.

Keep in mind. The US sets the standard. If we start doing things like this, don't whine when the China does the same thing. They could make the same case for any conference on any topic. If Americans come, they will steal XYZ.

about 3 months ago
top

Hewlett-Packard Admits To International Bribery and Money Laundering Schemes

ebonum and this is (139 comments)

news?

about 5 months ago
top

NSA Hacked Huawei, Stole Source Code

ebonum Goldman (287 comments)

Remember when Goldman lost some of their trading software? The US government couldn't move fast enough to arrest the guy(Aleynikov ). Time for Huawei to go to the police and ask to for the same. Someone should go to jail, and there will be billion dollar lawsuits. Huawei is a massive, mufti-billion dollar a year company and their source code does have significant value. Huawei has be hacked and has been damaged. If the police do nothing, then change the laws. The next time a Goldman Sachs gets hacked, don't prosecute. Don't extradite some kid from a foreign country to face face prosecution here.

We are the US. One thing that makes us different from the Chinese Communist party is that Chinese Communist party does what it wants and only applies the law when convenient. We do not. We believe in equal protection form the government and equal application of the laws. An American company caught polluting in China will be shown no mercy. A Chinese company polluting in China will come to a quiet, negotiated solution or face no charges at all. This is a key difference between us and them. If the US government really is no better than they are, we need to rethink everything up to dissolving the government.

about 5 months ago
top

Java 8 Officially Released

ebonum Re:whohoo! Swiss cheese! (302 comments)

But Java now has "critical new features, including Lambda expressions". Java really didn't work without Lambda expressions. Now I can FINALLY get a Java "hello world" to compile and run! Yippee.

(ok, so Lambda expressions are cool, but are they critical?)

about 5 months ago
top

Ask Slashdot: Do You Still Trust Bitcoin?

ebonum Bernie (631 comments)

One could ask: after Bernie Madoff how could you ever trust a fund manager again?

At some point Visa or Bank of America will start exchanging bit coins and change very high fees. They will have the same internal controls they use for the rest of their business. We don't need any innovation. The old processes work today and will work in the future. We need some company who knows how to run a transactional financial service to set up a service for bit coins. This does not exist today.

about 6 months ago
top

Federal Smartphone Kill-Switch Legislation Proposed

ebonum evilly tapping fingers together. (173 comments)

Will this be activated by simply logging into someone else's, oops. I mean, _MY_ Apple/Google account and filling out a form? No reason why. Just wondering.

about 7 months ago
top

Ugly Trends Threaten Aviation Industry

ebonum TSA (473 comments)

As a private pilot, doing short hops in your own plane is nice. You skip the humiliation of the TSA.

Unless you own a jet, longer flights are hard to do in a private plane. Range and speed limit how far is practical to travel in a few hours on your own.

about 7 months ago
top

Congressmen Say Clapper Lied To Congress, Ask Obama To Remove Him

ebonum Barry Bonds (383 comments)

I will remind you that Barry Bonds went to jail for lying to Congress. They didn't hesitate to throw him in jail.

Either throw Clapper in jail or rewrite the laws to reflect reality: If you are powerful enough and have the full support of the current administration, you are immune from prosecution.

And while you are at it, take that stupid blindfold off that statute of justice. That is from another world and another time. It has no relevance today.

about 7 months ago
top

Nissan Unveils 88 Pound 400-HP Race Car Engine

ebonum Re:Thought Experiment (239 comments)

huh? I said run the exhaust into a compressor that then pushes all the exhaust into a storage tank. The air flow through the engine would be unchanged.
This is a thought experiment. The fact that you are trying to compress large amounts of hot gasses (not easy), the tank size/weight, power and size requirements for the compressor are all ignored. The point is: tail pipe emissions are not the end-all-be-all when it comes to actual pollution generated/environmental impact of the system.

about 7 months ago
top

Nissan Unveils 88 Pound 400-HP Race Car Engine

ebonum Thought Experiment (239 comments)

You attach a compressor to the exhaust pipe on a normal car. The exhaust is compressed and stored in a tank. The tank can hold the exhaust from one lap of a race. During a lap, no emissions are released. Would you have a "first race car in history to complete a lap during a formal race with absolutely zero emissions". No. You wouldn't. Whoever is claiming "zero emissions" is a fool. Altering the time or location when emissions are released does not make something zero emissions. How much nasty bunker oil was used to ship all the parts around the globe to make the damn thing? How many children in China will get cancer because they live next to the mine that produced all the rare earths that went into the magnets and electronics?

Minimizing pollution is a noble goal. Making blatantly false and misleading statements to support your world view, biases or support your agenda is wrong on many levels.

about 7 months ago

Submissions

ebonum hasn't submitted any stories.

Journals

ebonum has no journal entries.

Slashdot Login

Need an Account?

Forgot your password?

Submission Text Formatting Tips

We support a small subset of HTML, namely these tags:

  • b
  • i
  • p
  • br
  • a
  • ol
  • ul
  • li
  • dl
  • dt
  • dd
  • em
  • strong
  • tt
  • blockquote
  • div
  • quote
  • ecode

"ecode" can be used for code snippets, for example:

<ecode>    while(1) { do_something(); } </ecode>