Leaked Twitter and Facebook on BlackBerry 10

Research In Motion (RIM) BlackBerry operating system 10 to prepare for the end of 2012. Display Twitter and Facebook it will also change.

CrackBerry site have said the leak of two of the application. It is estimated, both applications were still to be developed internally by the RIM.

At first glance, it looks looks like Twitter and Facebook apps for other platforms. Twitter, for example, will implement a "pull to refresh".

Of course, this is still a leaked concept being developed by the team at RIM. There is still time for RIM to change that concept before its official release BlackBerry 10.

BB10 is designed to rival the iPhone, Android, and Windows Phone that is dominated by a touch screen device.

RIM says BB10 will be available in late 2012. RIM has made sure that the tablet will get a BB10 PlayBook.

Technical upsate on F1 vehicle

Renault R28 - sidepods
When compared with last year's car, the R28's new sidepods have been transformed. The vertical fins (larger red arrow) no longer support the rear-view mirrors, making for a cleaner design and better airflow management towards the rear of the car. In addition the bottom edge of the sidepod's air inlets are much higher than before (smaller red arrow) to provide the radiators with cleaner airflow and reduce the effect of turbulence generated by the front axle and suspension.

Renault R28 - front bridge wing

In comparison to its predecessor, the new Renault's nosecone has been dramatically lowered and now features an additional bridge profile (top arrow). While the front of the chassis has been minimised, the surface area of the wing's main profile has been increased. In addition the pillars (bottom arrow), which connect the nose to this profile, have been dramatically inclined to an almost horizontal position to reduce drag and improve the quality of airflow passing over and underneath the front of the car.

Super Aguri delay car launch

Super Aguri have opted to postpone the official launch of their 2008 car it was revealed on Tuesday. The Japanese squad had intended to unveil the SA08, which passed its mandatory FIA crash tests last week, at Barcelona’s Circuit de Catalunya on February 19.

Instead of launching their new challenger, team principal Aguri Suzuki and technical director Mark Preston will be present at the Spanish track to answer questions. The team’s finalised driver line-up, livery and sponsorship package is not expected to be unveiled until the season opener in March in Australia.

Takuma Sato is currently testing for the squad in Spain. The Japanese driver is behind the wheel of an SA07-5B at this week’s multi-team session at Jerez.

Jerez day two - McLaren enjoy a flying start

McLaren were the team to beat on Tuesday, as seven other squads joined early birds Red Bull and Williams for a second day of testing at the Spanish circuit of Jerez. The British team’s Lewis Hamilton clocked a best lap of 1m 19.102 to finish almost two-tenths of a second ahead of Pedro de la Rosa in the second MP4-23.

Both McLaren drivers focused on aerodynamic work and covered over 170 laps during the day. Tester De la Rosa will hand over testing duties to race driver Heikki Kovalainen on Wednesday.

Full report to follow.

Unofficial Tuesday times from Jerez:
1. Lewis Hamilton, McLaren, 1:19.102
2. Pedro de la Rosa, McLaren, 1:19.287
3. Robert Kubica.....BMW Sauber, 1:19.539
4. Kazuki Nakajima, Williams, 1:19.601
5. Nelson Piquet Jr, Renault, 1:19.660
6. Nick Heidfeld, BMW Sauber, 1:19.958
7. Mark Webber, Red Bull, 1:20.013
8. Nico Rosberg, Williams, 1:20.029
9. Sebastian Vettel, Toro Rosso, 1:20.105
10. David Coulthard, Red Bull, 1:20.176
11. Sebastien Bourdais, Toro Rosso, 1:20.418
12. Rubens Barrichello, Honda, 1:21.133
13. Lucas di Grassi, Renault, 1:21.200
14. Takuma Sato, Super Aguri, 1:21.400
15. Vitantonio Liuzzi, Force India, 1:21.553
16. Alexander Wurz, Honda, 1:21.950

Understanding the sport_2

Helmets

One of the most important safety devices in Formula One racing is the driver's helmet. Although its fundamental shape may look very similar to those worn by drivers in the 1980s and even the 1970s, the underlying design and construction technology has changed radically over the...

Pit stops

Drivers get most of the attention, but Formula One racing remains a team sport even during the race itself. The precisely timed, millimetre perfect choreography of a modern pit stop is vital to help teams to turn their race strategy into success - refuelling and changing a...

Safety car

For a dramatic expression of the relative performance of Formula One cars and road cars you need to look no further than the familiar, silver forms of the safety cars that feature at every Grand Prix.

Understanding the Sport

Aerodynamics

A modern Formula One car has almost as much in common with a jet fighter as it does with an ordinary road car. Aerodynamics have become key to success in the sport and teams spend tens of millions of dollars on research and development in the field each year.

Brakes

When it comes to the business of slowing down, Formula One cars are surprisingly closely related to their road-going cousins. Indeed as ABS anti-skid systems have been banned from Formula One racing, most modern road cars can lay claim to having considerably cleverer retardation.

Cockpit / safety

At the heart of the modern Formula One car lies the immensely strong 'monocoque' structure, often referred to as the 'tub'. This incorporates the cockpit and the driver's 'survival cell', but also forms the principal component of the car's chassis, with the engine and front...

Cornering

Cornering is vital to the business of racing cars, and Formula One is no exception. On straights the battle tends to be determined by the power of engine and brakes, but come the corners and the driver's skill becomes more immediately apparent. It's the area where an ace pilot can.

Drivers' clothing

Formula One helmets are designed around the clear need to protect drivers' heads from the risk of major impacts. But the rest of his clothing has an equally serious purpose: offering the best possible defence against the risks of fire.




[source :www.formula1.com]

Aerodynamics Features of the F1 Vehicle.....[2]

Over time, as the wheels were moved closer to the chassis, the front wings overlapped the front wheels when viewed from the front. This created unnecessary turbulence in front of the wheels, further reducing aerodynamic efficiency and thus contributing to unwanted drag. To overcome this problem, the top teams made the inside edges of the front wing endplates curved to direct the air towards the chassis and around the wheels. Many teams later introduced sculpted outside edges to the endplates to direct the air around the front wheels. This was often included in the design change some teams introduced to reduce the width of the front wing to give the wheels the same position relative to the wing in previous years. The interaction between the front wheels and the front wing makes it very difficult to come up with the best solution, and consequently almost all of the different teams have come up with different designs


The relationship between the front wing and the track is a delicate one; with the wing generally being more efficient the closer it is to the track. Therefore, the front
wing is low to the ground to obtain as much advantage from ground effect as possible, and generally has one full spanning flap. Developments usually concentrate on the profile of the wing, and the use of flaps. However, Ferrari recently angled the leading edge of the wing to form a forward racing V-shape. This comes from flow
visualizations on the wing, which shows its suction power is so strong that it pulls air in from angles not straight with the centerline. This means that the air is approaching a normal, straight leading edge at an angle to it, and therefore not working the wing to its full potential. By turning the edge by the correct angle, maximum efficiency will be obtained.The part of the front wing, which tends to change most in design, is the endplate. The primary function of this feature is to stop
the high-pressure air on the top of the wing from being encouraged to roll over the end of the wing to the low-pressure air beneath, causing induced drag. Additionally, the design aim of the endplates is to discourage the dirty air created by the front tire from getting under the floor of the car. Further to these, some teams use 'splitters', which are vertical fences, attached to the undersurface of the front wing, to assist the endplate


Wheels

The wheels of a formula one car probably induce the most drag of any part of the car.Unfortunately, have yet to be redesigned to reduce aerodynamic drag.Hindering this innovation are certain technical regulations.One such regulation is that the wheels cannot be covered.F1 wheels must to be the shape they are and this causes separation behind them.This separation causes large amounts of form drag.The amount of generated skin friction drag is minimal in comparison.So far, it appears that not much can be done to reduce form drag on the wheels, however teams have used the front wing to try to deflect the oncoming air around the front tires.

MP4-23.....

McLaren MP4-23 - cockpit area

Major changes have been introduced to this area to improve the quality of the air directed to the car's rear wing. The engine air intake has been placed further behind the headrest and a sort of long splitter (yellow arrow), which continues towards the very slim engine cover, has been added to reduce the area's cross section and diminish disruption to the airflow. In line with new regulations, the side protection around the driver's helmet (red arrow) has also been heightened. This connects to the rear bodywork in a more abrupt way to minimise the additional drag it creates.

McLaren MP4-23 - rear bodywork

Compared to the MP4-22, the rear of the car has been visibly lowered, with the exhaust pipes now placed further to the side. There are new movable covers (1), which could be replaced with cooling slits as the season progresses. The winglet behind the venting chimney (2) has also been refined. Rather than being curved, as on the MP4-22, the profile of its top edge is now completely flat. This increases the quantity and pressure of the airflow directed towards the rear wing, and uses the low pressure of the exiting hot exhaust gasses to accelerate that airflow.

McLaren MP4-23 - front suspension

The changes made to the car's front suspension are particularly interesting. As on the Ferrari F2008, the front of the chassis now higher than that of its predecessor, hence the quantity of airflow passing underneath the car has been dramatically increased. As a result, the team have angled the lower wishbone (2) downwards and increased the number of small sculpted winglets (1) underneath in order to manage the airflow more efficiently.

[Source :Formula1.com]

Team F1 McLaren memperkenalkan mobil MP4-23

STUTTGART, Tim Formula 1 McLaren, Senin (7/1) memperkenalkan mobil terbaru mereka yang akan dipakai pada musim balap tahun ini. Mobil terbaru tim asal Inggris ini diberi nama MP4-23.

Acara pengenalan mobil terbaru McLaren ini berlangsung di Museum Mercedes-Benz di Stuttgart, Jerman. “Target utama kami adalah membawa pembalap dan tim bersaing untuk merebut gelar juara dunia,” ungkap bos McLaren, Ron Dennis.

Tahun lalu, McLaren menempatkan dua pembalapnya, Lewis Hamilton dan Fernando Alonso, di posisi dua dan tiga. Namun di kategori konstruktor, McLaren tidak mendapat angka setelah dihukum akibat kasus mata-mata terhadap Ferrari.

Tahun ini, Alonso hengkang ke Renault dan posisinya digantikan Heikki Kovalainen.

“Semua orang bekerja sangat keras di akhir tahun 2007 untuk membuat mobil ini siap secepat mungkin dan membuat pembalap kami bisa melakukan tes selama mungkin sebelum seri pertama balap tahun 2008 berlangsung di Australia, 16 Maret mendatang,” jelas Dennis.

Hamilton, yang Senin ini berusia 23 tahun mengatakan dibutuhkan 14 ribu jam kerja untuk memastikan mobil ini siap. “Saya tidak sabar untuk bisa mengendarai mobil ini, Kamis mendatang,” jelas Hamilton.

Menurut rencana, MP4-23 akan menjalani tes pertama dalam ujicoba di Jerez pekan ini. (AFP/OL-06)

HEIKKI KOVALAINEN Q&A POST MP4-23 TEST

You have had three days in the Vodafone McLaren Mercedes MP4-23 this week, what are your first impressions of the car and the team?
I am really excited after my first test with Vodafone McLaren Mercedes team. Everyone has made a huge effort to get two new cars out on track this early in January and I have really enjoyed every day so far.

Are you settling in well with the test team and your engineers?
Absolutely, everyone has been really helpful and I feel very welcome in the team.

What has been your focus at the test in Jerez last week?
The most important thing has been to become familiar with the way the team operates and to get to know all the people in the test team. It is also important to get the feel for MP4-23 and to understand all the systems in the car.

Has it been an easy process to adapt to the Vodafone McLaren Mercedes car, are there any key basic operational differences to the Renault?
It has been quite easy, I was reasonably happy first of all with my seat and instruments which sometimes can take some time to get right. Of course there are some systems that function differently to Renault but we have been able to go through many of them already at the McLaren Technology Centre before the test so it's been ok so far.

You have just completed a positive week in Jerez, do you expect all the tests to run so smoothly?
You never know how the new car will behave and reliability is always a worry at this time of the year, so I was actually surprised that we didn't have any issues that stopped us running. It really shows the preparations that have been put in by both McLaren and Mercedes-Benz have been exceptional.

This week was the first time you have worked with Lewis, did you get on well?
Really well. He is a good team mate and we get on well. We seem to have similar comments about the new car so it also gives us good platform from where to build our year together. I was really impressed with Pedro's input, he is an incredibly good driver and really important for the team. I think he can help me a lot during the year. [F1 Mclaren site]